US3761495A - Epoxidized hydrocarbon acid esters having juvenile hormone activity - Google Patents
Epoxidized hydrocarbon acid esters having juvenile hormone activity Download PDFInfo
- Publication number
- US3761495A US3761495A US00169126A US3761495DA US3761495A US 3761495 A US3761495 A US 3761495A US 00169126 A US00169126 A US 00169126A US 3761495D A US3761495D A US 3761495DA US 3761495 A US3761495 A US 3761495A
- Authority
- US
- United States
- Prior art keywords
- formula
- ethyl
- acid esters
- dien
- yield
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 239000002253 acid Substances 0.000 title abstract description 24
- 239000004215 Carbon black (E152) Substances 0.000 title abstract description 23
- 229930195733 hydrocarbon Natural products 0.000 title abstract description 23
- 150000002430 hydrocarbons Chemical class 0.000 title abstract description 22
- 150000002148 esters Chemical class 0.000 title abstract description 21
- 239000002949 juvenile hormone Substances 0.000 title description 13
- 229930014550 juvenile hormone Natural products 0.000 title description 13
- 150000003633 juvenile hormone derivatives Chemical class 0.000 title description 13
- 230000003054 hormonal effect Effects 0.000 title description 6
- -1 polymethylene group Polymers 0.000 claims abstract description 69
- 150000001875 compounds Chemical class 0.000 claims abstract description 38
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 22
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 19
- 238000000034 method Methods 0.000 abstract description 24
- 150000002576 ketones Chemical class 0.000 abstract description 22
- 239000000203 mixture Substances 0.000 abstract description 17
- 241000238631 Hexapoda Species 0.000 abstract description 15
- 150000002118 epoxides Chemical class 0.000 abstract description 11
- 125000000217 alkyl group Chemical group 0.000 abstract description 9
- 238000010306 acid treatment Methods 0.000 abstract description 8
- 239000011203 carbon fibre reinforced carbon Substances 0.000 abstract description 8
- 238000002360 preparation method Methods 0.000 abstract description 8
- 150000001450 anions Chemical class 0.000 abstract description 7
- RGSFGYAAUTVSQA-UHFFFAOYSA-N Cyclopentane Chemical compound C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 abstract description 6
- UEZVMMHDMIWARA-UHFFFAOYSA-M phosphonate Chemical compound [O-]P(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-M 0.000 abstract description 5
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 abstract description 3
- DMEGYFMYUHOHGS-UHFFFAOYSA-N heptamethylene Natural products C1CCCCCC1 DMEGYFMYUHOHGS-UHFFFAOYSA-N 0.000 abstract description 3
- 238000009472 formulation Methods 0.000 abstract description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 24
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 24
- 239000002904 solvent Substances 0.000 description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 13
- 238000006243 chemical reaction Methods 0.000 description 13
- 238000010521 absorption reaction Methods 0.000 description 11
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 11
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 10
- 239000000543 intermediate Substances 0.000 description 10
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 9
- 239000000047 product Substances 0.000 description 9
- FVAUCKIRQBBSSJ-UHFFFAOYSA-M sodium iodide Chemical compound [Na+].[I-] FVAUCKIRQBBSSJ-UHFFFAOYSA-M 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 8
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 8
- 239000011541 reaction mixture Substances 0.000 description 8
- 239000003921 oil Substances 0.000 description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 6
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 6
- 235000019341 magnesium sulphate Nutrition 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 description 6
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 5
- 239000005977 Ethylene Substances 0.000 description 5
- 229910052783 alkali metal Inorganic materials 0.000 description 5
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 5
- 239000012442 inert solvent Substances 0.000 description 5
- HCFAJYNVAYBARA-UHFFFAOYSA-N 4-heptanone Chemical compound CCCC(=O)CCC HCFAJYNVAYBARA-UHFFFAOYSA-N 0.000 description 4
- XVRIEWDDMODMGA-UHFFFAOYSA-N 5-chloropentan-2-one Chemical compound CC(=O)CCCCl XVRIEWDDMODMGA-UHFFFAOYSA-N 0.000 description 4
- AFXUMFQTYRRITE-UHFFFAOYSA-N C1(CCCCC1)=CCCC(=CCCC(C)=O)C Chemical compound C1(CCCCC1)=CCCC(=CCCC(C)=O)C AFXUMFQTYRRITE-UHFFFAOYSA-N 0.000 description 4
- PCLIMKBDDGJMGD-UHFFFAOYSA-N N-bromosuccinimide Chemical compound BrN1C(=O)CCC1=O PCLIMKBDDGJMGD-UHFFFAOYSA-N 0.000 description 4
- JRNVZBWKYDBUCA-UHFFFAOYSA-N N-chlorosuccinimide Chemical compound ClN1C(=O)CCC1=O JRNVZBWKYDBUCA-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 4
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 description 4
- 150000001793 charged compounds Chemical class 0.000 description 4
- BGTOWKSIORTVQH-UHFFFAOYSA-N cyclopentanone Chemical compound O=C1CCCC1 BGTOWKSIORTVQH-UHFFFAOYSA-N 0.000 description 4
- 125000004494 ethyl ester group Chemical group 0.000 description 4
- NGAZZOYFWWSOGK-UHFFFAOYSA-N heptan-3-one Chemical compound CCCCC(=O)CC NGAZZOYFWWSOGK-UHFFFAOYSA-N 0.000 description 4
- 238000001819 mass spectrum Methods 0.000 description 4
- FDPIMTJIUBPUKL-UHFFFAOYSA-N pentan-3-one Chemical compound CCC(=O)CC FDPIMTJIUBPUKL-UHFFFAOYSA-N 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 239000000741 silica gel Substances 0.000 description 4
- 229910002027 silica gel Inorganic materials 0.000 description 4
- 229910000104 sodium hydride Inorganic materials 0.000 description 4
- 239000012312 sodium hydride Substances 0.000 description 4
- 239000007858 starting material Substances 0.000 description 4
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 4
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 229910000102 alkali metal hydride Inorganic materials 0.000 description 3
- 150000008046 alkali metal hydrides Chemical class 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 239000012259 ether extract Substances 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 239000000284 extract Substances 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- WCYWZMWISLQXQU-UHFFFAOYSA-N methyl Chemical class [CH3] WCYWZMWISLQXQU-UHFFFAOYSA-N 0.000 description 3
- 235000009518 sodium iodide Nutrition 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- ULPMRIXXHGUZFA-UHFFFAOYSA-N (R)-4-Methyl-3-hexanone Natural products CCC(C)C(=O)CC ULPMRIXXHGUZFA-UHFFFAOYSA-N 0.000 description 2
- NHQDETIJWKXCTC-UHFFFAOYSA-N 3-chloroperbenzoic acid Chemical compound OOC(=O)C1=CC=CC(Cl)=C1 NHQDETIJWKXCTC-UHFFFAOYSA-N 0.000 description 2
- PFCHFHIRKBAQGU-UHFFFAOYSA-N 3-hexanone Chemical compound CCCC(=O)CC PFCHFHIRKBAQGU-UHFFFAOYSA-N 0.000 description 2
- RZXWNQYIRHMNTQ-UHFFFAOYSA-N 5-iodopentan-2-one Chemical compound CC(=O)CCCI RZXWNQYIRHMNTQ-UHFFFAOYSA-N 0.000 description 2
- AOBIDPSDYVJCOT-UHFFFAOYSA-N 6-chlorohexan-3-one Chemical compound CCC(=O)CCCCl AOBIDPSDYVJCOT-UHFFFAOYSA-N 0.000 description 2
- LPURUSPXSJAUIM-UHFFFAOYSA-N 7-ethylnon-6-en-3-one Chemical compound C(C)C(=CCCC(CC)=O)CC LPURUSPXSJAUIM-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- 230000004071 biological effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004587 chromatography analysis Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 238000010410 dusting Methods 0.000 description 2
- 235000013601 eggs Nutrition 0.000 description 2
- VEUUMBGHMNQHGO-UHFFFAOYSA-N ethyl chloroacetate Chemical compound CCOC(=O)CCl VEUUMBGHMNQHGO-UHFFFAOYSA-N 0.000 description 2
- 239000005556 hormone Substances 0.000 description 2
- 229940088597 hormone Drugs 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 2
- 238000004949 mass spectrometry Methods 0.000 description 2
- QABLOFMHHSOFRJ-UHFFFAOYSA-N methyl 2-chloroacetate Chemical compound COC(=O)CCl QABLOFMHHSOFRJ-UHFFFAOYSA-N 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 description 2
- YWXLSHOWXZUMSR-UHFFFAOYSA-N octan-4-one Chemical compound CCCCC(=O)CCC YWXLSHOWXZUMSR-UHFFFAOYSA-N 0.000 description 2
- 150000004967 organic peroxy acids Chemical class 0.000 description 2
- 150000004714 phosphonium salts Chemical class 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 2
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 2
- 235000019345 sodium thiosulphate Nutrition 0.000 description 2
- 241000894007 species Species 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- 238000004809 thin layer chromatography Methods 0.000 description 2
- CYTQBVOFDCPGCX-UHFFFAOYSA-N trimethyl phosphite Chemical compound COP(OC)OC CYTQBVOFDCPGCX-UHFFFAOYSA-N 0.000 description 2
- CRDAMVZIKSXKFV-FBXUGWQNSA-N (2-cis,6-cis)-farnesol Chemical compound CC(C)=CCC\C(C)=C/CC\C(C)=C/CO CRDAMVZIKSXKFV-FBXUGWQNSA-N 0.000 description 1
- 239000000260 (2E,6E)-3,7,11-trimethyldodeca-2,6,10-trien-1-ol Substances 0.000 description 1
- QRDYHKLLQVGVNO-UHFFFAOYSA-N 2-(3-iodopropyl)-2-methyl-1,3-dioxolane Chemical compound ICCCC1(C)OCCO1 QRDYHKLLQVGVNO-UHFFFAOYSA-N 0.000 description 1
- GVNVAWHJIKLAGL-UHFFFAOYSA-N 2-(cyclohexen-1-yl)cyclohexan-1-one Chemical compound O=C1CCCCC1C1=CCCCC1 GVNVAWHJIKLAGL-UHFFFAOYSA-N 0.000 description 1
- YNJSNEKCXVFDKW-UHFFFAOYSA-N 3-(5-amino-1h-indol-3-yl)-2-azaniumylpropanoate Chemical compound C1=C(N)C=C2C(CC(N)C(O)=O)=CNC2=C1 YNJSNEKCXVFDKW-UHFFFAOYSA-N 0.000 description 1
- PQIXRYBSJBIXHN-UHFFFAOYSA-N 5-cyclohexylidenepentan-2-one Chemical compound CC(=O)CCC=C1CCCCC1 PQIXRYBSJBIXHN-UHFFFAOYSA-N 0.000 description 1
- PQJPDBXYUUFDRK-UHFFFAOYSA-N 5-cyclopentylidenepentan-2-one Chemical compound CC(=O)CCC=C1CCCC1 PQJPDBXYUUFDRK-UHFFFAOYSA-N 0.000 description 1
- RHCAOLBFODFONJ-UHFFFAOYSA-N 6,10-diethyldodeca-5,9-dien-2-one Chemical compound C(C)C(=CCCC(C)=O)CCC=C(CC)CC RHCAOLBFODFONJ-UHFFFAOYSA-N 0.000 description 1
- UGNKQWGYIRQBNO-UHFFFAOYSA-N 6-ethyloct-5-en-2-one Chemical compound CCC(CC)=CCCC(C)=O UGNKQWGYIRQBNO-UHFFFAOYSA-N 0.000 description 1
- 241000256021 Antheraea polyphemus Species 0.000 description 1
- 101150065749 Churc1 gene Proteins 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- IIWNDLDEVPJIBT-OLZOCXBDSA-N Juvabione Chemical compound COC(=O)C1=CC[C@H]([C@H](C)CC(=O)CC(C)C)CC1 IIWNDLDEVPJIBT-OLZOCXBDSA-N 0.000 description 1
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 description 1
- 102100038239 Protein Churchill Human genes 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 241000254105 Tenebrio Species 0.000 description 1
- 239000003377 acid catalyst Substances 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004440 column chromatography Methods 0.000 description 1
- 239000012043 crude product Substances 0.000 description 1
- GTVXSZWUQLCDFX-UHFFFAOYSA-N deca-2,6-dienoic acid Chemical compound CCCC=CCCC=CC(O)=O GTVXSZWUQLCDFX-UHFFFAOYSA-N 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006567 deketalization reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- IIWNDLDEVPJIBT-UHFFFAOYSA-N dihydroatlantonic acid methyl ester Natural products COC(=O)C1=CCC(C(C)CC(=O)CC(C)C)CC1 IIWNDLDEVPJIBT-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 230000013020 embryo development Effects 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- WDMOWRSSQSYEEJ-UHFFFAOYSA-N ethene;hydroiodide Chemical compound I.C=C WDMOWRSSQSYEEJ-UHFFFAOYSA-N 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 229930002886 farnesol Natural products 0.000 description 1
- 229940043259 farnesol Drugs 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 239000000201 insect hormone Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000007653 larval development Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 150000004702 methyl esters Chemical class 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- HSPSCWZIJWKZKD-UHFFFAOYSA-N n-chloroacetamide Chemical compound CC(=O)NCl HSPSCWZIJWKZKD-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- WSGCRAOTEDLMFQ-UHFFFAOYSA-N nonan-5-one Chemical compound CCCCC(=O)CCCC WSGCRAOTEDLMFQ-UHFFFAOYSA-N 0.000 description 1
- 239000004533 oil dispersion Substances 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 239000000546 pharmaceutical excipient Substances 0.000 description 1
- 230000000144 pharmacologic effect Effects 0.000 description 1
- 230000003389 potentiating effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 230000005070 ripening Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000012439 solid excipient Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- CRDAMVZIKSXKFV-UHFFFAOYSA-N trans-Farnesol Natural products CC(C)=CCCC(C)=CCCC(C)=CCO CRDAMVZIKSXKFV-UHFFFAOYSA-N 0.000 description 1
- 229930195735 unsaturated hydrocarbon Natural products 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
- C07C45/63—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by introduction of halogen; by substitution of halogen atoms by other halogen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C403/00—Derivatives of cyclohexane or of a cyclohexene or of cyclohexadiene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene or cyclohexadiene rings, e.g. vitamin A, beta-carotene, beta-ionone
- C07C403/14—Derivatives of cyclohexane or of a cyclohexene or of cyclohexadiene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene or cyclohexadiene rings, e.g. vitamin A, beta-carotene, beta-ionone having side-chains substituted by doubly-bound oxygen atoms
- C07C403/16—Derivatives of cyclohexane or of a cyclohexene or of cyclohexadiene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene or cyclohexadiene rings, e.g. vitamin A, beta-carotene, beta-ionone having side-chains substituted by doubly-bound oxygen atoms not being part of —CHO groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/56—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds from heterocyclic compounds
- C07C45/57—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds from heterocyclic compounds with oxygen as the only heteroatom
- C07C45/59—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds from heterocyclic compounds with oxygen as the only heteroatom in five-membered rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
- C07C45/67—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
- C07C45/68—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms
- C07C45/72—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms by reaction of compounds containing >C = O groups with the same or other compounds containing >C = O groups
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- C07D—HETEROCYCLIC COMPOUNDS
- C07D303/00—Compounds containing three-membered rings having one oxygen atom as the only ring hetero atom
- C07D303/02—Compounds containing oxirane rings
- C07D303/38—Compounds containing oxirane rings with hydrocarbon radicals, substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D303/40—Compounds containing oxirane rings with hydrocarbon radicals, substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals by ester radicals
- C07D303/42—Acyclic compounds having a chain of seven or more carbon atoms, e.g. epoxidised fats
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D317/00—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms
- C07D317/08—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3
- C07D317/10—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings
- C07D317/14—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D317/16—Radicals substituted by halogen atoms or nitro radicals
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- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/28—Phosphorus compounds with one or more P—C bonds
- C07F9/38—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
- C07F9/40—Esters thereof
- C07F9/4003—Esters thereof the acid moiety containing a substituent or a structure which is considered as characteristic
- C07F9/4006—Esters of acyclic acids which can have further substituents on alkyl
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/28—Phosphorus compounds with one or more P—C bonds
- C07F9/54—Quaternary phosphonium compounds
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/28—Phosphorus compounds with one or more P—C bonds
- C07F9/54—Quaternary phosphonium compounds
- C07F9/5407—Acyclic saturated phosphonium compounds
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
- C07C2601/14—The ring being saturated
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S424/00—Drug, bio-affecting and body treating compositions
- Y10S424/12—Fertilization attaching inhibition
Definitions
- ABSTRACT A process is disclosed herein for the preparation of hydrocarbon acid esters of formula
- R and R are alkyl groups containing two to four carbon atoms or R and R together are a poly methylene group containing four to five carbon atoms forming a cyclopentane or cyclohexane ring, R R and R are alkyl groups containing 1 2 carbon atoms and Z and Z together are a carbon-carbon double bond or an epoxide; whereby the appropriate ketone of formula RR C O is condensed with the ylid generated from either 4-oxopentyll -triphenylphosphonium iodide ethylene ketal or 4-oxohexyl-l-triphenylphosphonium iodide ethylene ketal, followed by acid treatment to remove the ketal, and yield the appropriate ketonic intermediate, which is treated successively with either of the preceding ylids and then acid treatment to yield a ketone of formula RR C CHCI-I CI-I CR CHCH CH COR"; the last
- Juvenile hormone appears to control egg ripening and the normal development of the sexually mature insect from the larva. 1n the normal life cycle of the insect, the juvenile hormone must be present at the stage of the immature larva if it is to progress through the normal stages of larval development. However, the juvenile hormone must be absent if the mature larva is to metamorphose into the sexually mature insect. Presence of the juvenile hormone at this point in the development of the insect will prevent the emergence of the sexually mature form capable of reproduction, and contact of the eggs with the juvenile hormone will prevent normal embryonic development. These facts are of great importance in the control of insect populations.
- hydrocarbon acid esters possess a very low order of toxicity to species other than insects.
- this invention relates to a facile preparation of unsaturated hydrocarbon acid esters containing 18 to 25 carbon atoms which may be represented by formula I;
- R and R represent alkyl groups containing from two to four carbon atoms or R and R together represent a polymethylene radical containing four to five carbon atoms which in conjunction with the carbon atom 11 to which they are bonded form a cyclopentane or cyclohexane ring, respectively;
- R, R and R represent alkyl groups containing one to two carbon atoms and Z and Z together represent a carboncarbon double bond between carbon atoms and 11 or an epoxide.
- the compounds of formula I of the process of this invention exhibit the biological activities of the juvenile hormone and are useful as means for controlling insect populations. More particularly, these compounds, when tested in standard pharmacological tests used in entomology, for example in the modified Tenebrio test described by Roller et al., in Life Sci., Vol. 4, p. 1617 (1965), exhibit the useful activity of the juvenile hormone.
- the compounds of this invention of formula 1 When administered to the test insects in the manner described by Roller et al., cited above, the compounds of this invention of formula 1 cause the formation of typical pupal cuticle over the area of deposition.
- the compounds of this invention of formula I may be formulated in the form of liquid sprays, in solution in suitable solvents such as lipophilic solvents, for example vegetable or mineral oils, or hydrocarbon solvents, or solvents which have both lipophilic or hydrophilic characteristics, for example, lower aliphatic ketones or polyhydric alcohols; or they may be dissolved in a lipophilic solvent such as exemplified above and may be formulated in the form of aqueous emulsions together with suitable surface'active agents such as emulsifiers and/or detergents, and other suitable excipients. They may also be formulated in the form of dusting powders together with suitable solid excipients.
- suitable solvents such as lipophilic solvents, for example vegetable or mineral oils, or hydrocarbon solvents, or solvents which have both lipophilic or hydrophilic characteristics, for example, lower aliphatic ketones or polyhydric alcohols; or they may be dissolved in a lipophilic solvent such as exemplified above and may be formulated
- hydrocarbon aced esters of formula l may be prepared in the following manner:
- the starting materials for the process of the invention are the simple ketones of formula RRC 0 (II), in which R and R are as defined above. Most of these simple ketones are commercially available; the remaining starting materials are prepared by conventional methods. Such conventional methods for preparing ketones and aldehydes are described in textbooks on organic chemistry; for example, see P. Karrer, Organic Chemistry, 2nd ed., Elsevier Publishing Co., Inc., New York, 1946, pp. 149-169 and V. Migrdichian, Organic Synthesis," Vol. 1, Reinhold Publishing Corp., New York, 1957, pp. 100-129.
- the latter dienones of formula IV are then treated with the anion prepared from a dialkylcarbomethoxymethyl or a dialkylcarbethoxymethyl phosphonate containing from 1 4 carbon atoms in the alkyl groups.
- the latter compounds are conveniently prepared from methyl or ethyl chloroacetate and the appropriate tiralkyl phosphite in which the alkyl group contains from 1 4 carbon atoms each, and the anion is prepared therefrom by means of an alkali metal alkoxide containing from 1 4 carbon atoms or an alkali metal hydride.
- hydrocarbon acid methyl, or ethyl, esters of formula I in which R, R R and R are as defined above, R is methyl or ethyl, respectively, and Z and Z together represent a carbon-carbon double bond between carbon atoms and 11.
- the latter compounds are converted to the corresponding epoxides, the hydrocarbon acid esters of formula l in which R, R R, R and R are as defined in the first instance and Z and Z together represent an epoxide, by treatment with either a reagent selected from the group, N-bromoand N-chloro-succinimide and N-bromoand N-chloroacetamide, followed by treatment with an alkali metal alkoxide containing 1 4 carbon atoms, or by treatment with an organic peracid.
- a reagent selected from the group, N-bromoand N-chloro-succinimide and N-bromoand N-chloroacetamide followed by treatment with an alkali metal alkoxide containing 1 4 carbon atoms, or by treatment with an organic peracid.
- the principal advantage of the process of this invention is the fact that it proceeds from commercially available starting material to the desired final products in good yields and via a pathway involving relatively few steps.
- a partically useful process of preparation of such compounds is especially advantageous.
- 4-oxopentyl-l-triphenylphosphonium iodide ethylene ketal is prepared by treating commercially avaiable 5-chloro-2-pentanone in a solvent with a molar excess of sodium iodide, to obtain the corresponding 5-iodo-2-pentanone.
- Preferred conditions for this reaction include the use of three equivalents of sodium iodide and of acetone as the solvent, and relfluxing for 0.5 to 2 hours.
- 5-lodo-2-pentanone thus obtained is ketalized by treatment in a waterimmiscible solvent with a molar excess of ethylene glycol in the presence of small amounts of an acid catalyst, removing water from the reaction mixture as it is being formed.
- Preferred reaction conditions include the use of three equivalents of ethylene glycol, 0.1 equivalent of p-toluenesulfonic acid, benzene as the solvent, and a water-separating device as part of the equipment. Refluxing the mixture for periods of time of from 8 to 24 hours yields 5-iodo-2- pentanone ethylene ketal.
- Said last-named compound is treated with a molar excess of triphenylphosphine at a temperature within the range of from 50 to 150C in an inert solvent to yield 4-oxopentyl-l-triphenylphosphonium idoide ethylene ketal.
- Preferred reaction conditions include the use of 1.1 equivalents of triphenylphosphine and of benzene as the solvent, and carrying out the reaction at the reflux temperature of the mixture, whereupon the desired compound crystallizes from the reaction mixture in a sufficiently pure state for immediate use.
- 4-oxohexyl-l-triphenylphosphonium iodide ethylene ketal is prepared except that 6-chloro-3-hexanone is used instead of 5-chloro-2- pentanone.
- the 4-oxopentyl-b l-triphenylphosphonium iodide ethylene ketal or 4-oxohexyl-l-triphenylphosphonium iodide ethylene ketal, thus prepared, may be converted to their corresponding ylids by treatment with a alkali metal alkoxide containing from one to five carbon atoms or an alkali metal hydride in a common solvent. Subsequent condensation of the appropriate ylid with a ketone of formula II described above, yields the ketone intermediates of formula III, described above, after acid treatment.
- the next step of this process the conversion of the ketone intermediate of formula III to the dienone derivative of formula IV, may be accomplished in the same manner as above described conversion of the ketones of formula ll to the ketone intermediates of formula III except that an equivalent amount of the ketone intermediate of fomrula III is used instead of the ketone of formula II.
- Ill the above preferred conditions relating to the previous step of the process I] Ill apply equally well to this present step, "I IV, including the conditions for the acid treatment to remove the ketal group from the resulting ethylene ketal derivative.
- the dienone derivative of formula IV is treated with the anion prepared from a dialkylcarbomethoxymethyl or a dialkylcarbethoxymethyl phosphonate, preferably dimethylcarbomethoxymethyl phosphonate, obtained from methyl chloroacetate and trimethyl phosphite according to the method described by PC. Crofts in Quart. Rev. Chem. Soc., 12, 341 (1958) by the action of approximately an equivalent amount of an alkali metal hydride in an inert solvent or by the action of an approximately equivalent amount of an appropriate alkali metal alkoxide containing from one to four carbon atoms in an inert solvent.
- This anion formation is performed preferably by mixing equivalent molar amounts of the appropriate dialkylcarbomethoxymethyl or dialkylcarbethoxymethyl phosphonate, preferably dimethylcarbomethoxymethyl phosphonate,
- the alkyl groups in the above compounds contain from 1 4 carbon atoms.
- Preferred conditions in the above reaction include agitating the reaction mixture at temperatures of from 10C to the boiling point of the mixture for periods of time of from 8 hours to 6 days, dilution with water, extraction with a water-immiscible solvent, and purification by chromatography, preferably on silica gel.
- reaction conditions include the use of 1.1 equivalents of N-bromosuccinimide, of a 3:2 mixture of dimethoxyethane and water as solvent, of 1.1 equivalents of sodium methoxide, of reaction temperatures close to 0C, and of reaction times of 30 to 60 minutes.
- the desired hydrocarbon acid esters of formula l thus obtained may be purified, preferably by chromatography on silica gel or on alumina.
- the above compounds of formula 1 in which Z and Z are a carbon-carbon double bond may be treated with at least one molar equivalent of an organic peracid in an inert solvent at temperatures of from 20C to 20C., from 2 hours to 2 days in a manner similar to that described by K.l-l. Dahm, et al., J. I
- hydrocarbon acid esters of formula 1, in which R, R R, R and R are as defined in the first instance and Z and Z together represent an epoxide are also obtained.
- Preferred conditions include the use of 1.1 equivalents of perbenzoic or m-chloroperbenzoic acid, ether as solvent, a reaction temperature of 0C and a reaction time of 16 hours. Purification of the desired hydrocarbon acids esters may be effected as described above.
- EXAMPLE 2 R and R ample I, is added followed by 15 ml of dimethylsulfoxide and the mixture stirred for minutes, forming the corresponding ylid of the phosphonium salt. Then, cyclohexanone (0.98 g., 10 meq.) in 9 ml. of dimethylsulfoxide is added over a period of 10 minutes and the mixture stirred for 1 hours at 6070C. After cooling to 220 C, the reaction mixuture is poured into 200 ml of water and extracted with pentane (100 50 50 50 ml.). The pentane extract is washed with water (3 X 50 ml.), dried over magnesium sulfate and evaporated at room temperature under vacuum, yielding an oil.
- EXAMPLE 4 In the same manner as described for Example 2 but using an equivalent amount of cyclopentanone, 3- hexanone, 3-heptanone, 4-heptanone, 4-octanone or 5-nonanone, there may be obtained, 5-cyclopentylidenepentan-Z-one, 6ethyl-5-nonen-2-one, 6-ethyl-5- decen-2-one, 6-propyl-5-nonen-2-one, 6-propyl-5- decen-Z-one and 6-butyl-5-decen-2-one, respectively.
- EXAMPLE 6 9-CYCLOHEXYLIDENE-6-METHYL-5-NONEN- 2-ONE (IV; R and R together (CH R and R each CH
- the corresponding ylid of 4-oxopentyl-I-triphenylphosphonium iodide ethylene ketal is prepared in the same manner as described in Example 2, using 0.54 g of the 57 percent oil dispersion of sodium hydride and 5.85 g. of the phosphonium salt.
- 5-cyclohexylidenepentan-Z-one (1.42 g, 8.6 meq.- prepared as described in Example 2, is added instead of cyclohexanone and the reaction is performed under the same conditions as described for Example 2.
- EXAMPLE 8 In the same manner as described for Example 6, but using an equivalent amount of 5-cyclopentylidenepentan-2-one, 6-ethyl-5-nonen-2-one, 6-ethyl-5-decen- 2-one, 6-propyl-5-nonen-2-one, 6-propyl-5-decen- 2-one or 6-butyl-5-decen-2-one, prepared as described in Example 4, there may be obtained the dienone derivatives of formula IV, 9-cyclopentylidene-6-methyl-5- nonen-Z-one, l0-ethyl-6-methyltrideca-5,9-dien-2-one, l0-ethyl-6-methyltetradeca-5,9-dien-2-one, l0-propyl- 6-methyltrideca-5,9-dien-2-one, lO-propyl-6- methyltetradeca-S,9-dien-2-one and l0-butyl-6- methyltetradeca-S
- dienone derivatives of formula IV 9-cyclohexylidene-6-ethyl-5-nonen-2-one, 9- cyclopentylidene-6-ethyl-5-nonen-2-one, 6,10-diethyldodeca-5,9-dien-2-one, 6,10-diethyltrideca-S,9-dien- 2-one, 6,10-diethyl-tetradeca-S,9-dien-2-one, 6-ethyllO-propyltrideca-S,9-dien-2-one, 6-ethyl-lO-propyltetradeca-5,9-dien-2-one and lO-butyl-6-ethyltetradeca- 5,9-dien-2-one, respectively.
- EXAMPLE 10 methylpentadeca-6, l -dien-3-one, 1 1-propyl-7- methyltetradeca-6,l0-dien-3one, l l-propyl-7- methylpentadeca-6, l O-dien-3-one and 1 1-butyl-7- methylpentadeca-6,l0-dien-3-one; cyclohexylidene-7-ethyl-6-decen-3-one, 10-
- cyclopentylidene-7-ethyl-6-decen-3-one 7,11-diethyltrideca-6,l0-dien-3-one, 7,1l-diethyltetradeca-6,10- dien-3-one, 7,1 1-diethylpentadeca-6,10-dien-3one, 7-ethyl-1 l-propyltetradeca-6,10-dien-3-one, 7-ethyl- 1l'propylpentadeca-,10-dien-3-one and l1-butyl-7- ethylpentadeca-6,10-dien-3-one, respectively.
- PHOS- EXAMPLE 12 METHYL-10-CYCLOHEXYLIDENE-3,7- DIMETHYLDECA-2,6-DIENOATE (I, R and R together (CH,) R, R and R each CB and Z and Z together double bond)
- Sodium hydrode (1.54 g of 57 percent mineral oil dispersion) is washed with pentane 20+10+10 ml) and benzene ml) added with stirring.
- the resulting suspension is cooled to 15C and dimethylcarbomethoxymethyl phosphonate (6.21 g., 6 X 6.1 meq.), prepared as described in Example 1 l, in benzene (10 ml) is added dropwise with stirring.
- the product may be purified by column chromatography on silica gel.
- the title compound is characterized by its infrared and its nuclear magnetic resonance spectra and the molecular weight is confirmed by mass spectroscopy; y 2 1717 and 1647 cm, 1 3 4.31 (singlet, 1H), 4.90 (broad unresolved multiplet, 2H), 6.30 (singlet, 3H), 7.5 8.2 (complex absorption with a prominent double peak at 7.80, 15H), 8.2 8.8 (complex absorption, 91-1); M/e 290.
- EXAMPLE 14 In the same manner as described for Example 12, but using an equivalent amount of 9-cyclopentylidene-6- methyl-S-nonen-Z-one, 10-ethyl-6-methyltrideca-5,9- dien-2-one, 10-ethyl-6-methyltetradeca-5,9-dien- 2-one, 10-propyl-6-methyltrideca-5,9-dien-2-one, 10- propyl-6-methyltetradeca-5,9-dien-2-one and l0-butyl- 6-methyltetradeca-5,9-dien-2-one, prepared as described in Example 8; 9-cyclohexylidene-6-ethyl-5- nonen-2-one, 9-cyclopentylidene-6-ethyl-5 -nonen- 2-one, 6,lO-diethyldodeca-S,9-dien-2-one, 6,10- diethyltrideca-S,9-dien-2-one, 6,10-
- methyl 10-cyclohexylidene-3,7-dimethyldeca2,6-dienoate (252 mg., 0.87 meq.) is dissolved in 40 ml of ether and cooled to 0C.
- m- Chloroperbenzoic acid (166 mg. 0.96 meq.) in 20 ml. of ether is added and the solution mixed and then allowed to stand at 0C for 16 hours.
- the mixture is diluted with water and extracted with ether.
- the ether extract is washed with 5 percent sodium bicarbonate, dried over magnesium sulfate and evaporated to yield the crude title compound as an oil. Purification is effected as described above.
- ethyl 10,1l-epoxy-3,7-dimethyl1l-ethyltrideca-2,6-dienoate may be obtained.
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Abstract
A process is disclosed herein for the preparation of hydrocarbon acid esters of formula,
IN WHICH R1 and R2 are alkyl groups containing two to four carbon atoms or R1 and R2 together are a polymethylene group containing four to five carbon atoms forming a cyclopentane or cyclohexane ring, R3, R4 and R5 are alkyl groups containing 1 - 2 carbon atoms and Z1 and Z2 together are a carbon-carbon double bond or an epoxide; whereby the appropriate ketone of formula R1R2C O is condensed with the ylid generated from either 4oxopentyl-1-triphenylphosphonium iodide ethylene ketal or 4oxohexyl-1-triphenylphosphonium iodide ethylene ketal, followed by acid treatment to remove the ketal, and yield the appropriate ketonic intermediate, which is treated successively with either of the preceding ylids and then acid treatment to yield a ketone of formula R1R2C CHCH2CH2CR3 CHCH2CH2COR4; the last said compound is then treated with the anion prepared from a dialkylcarbomethoxymethyl or a dialkylcarboethoxymethyl phosphonate to yield the hydrocarbon acid esters of the above formula in which Z1 and Z2 together are a carbon-carbon double bond, said last compounds are oxidized to yield the hydrocarbon acid esters of the above formula in which Z1 and Z2 together are an epoxide. The hydrocarbon acid esters of this invention are useful for the control of insect populations and methods for their formulation and use for this purpose are given.
IN WHICH R1 and R2 are alkyl groups containing two to four carbon atoms or R1 and R2 together are a polymethylene group containing four to five carbon atoms forming a cyclopentane or cyclohexane ring, R3, R4 and R5 are alkyl groups containing 1 - 2 carbon atoms and Z1 and Z2 together are a carbon-carbon double bond or an epoxide; whereby the appropriate ketone of formula R1R2C O is condensed with the ylid generated from either 4oxopentyl-1-triphenylphosphonium iodide ethylene ketal or 4oxohexyl-1-triphenylphosphonium iodide ethylene ketal, followed by acid treatment to remove the ketal, and yield the appropriate ketonic intermediate, which is treated successively with either of the preceding ylids and then acid treatment to yield a ketone of formula R1R2C CHCH2CH2CR3 CHCH2CH2COR4; the last said compound is then treated with the anion prepared from a dialkylcarbomethoxymethyl or a dialkylcarboethoxymethyl phosphonate to yield the hydrocarbon acid esters of the above formula in which Z1 and Z2 together are a carbon-carbon double bond, said last compounds are oxidized to yield the hydrocarbon acid esters of the above formula in which Z1 and Z2 together are an epoxide. The hydrocarbon acid esters of this invention are useful for the control of insect populations and methods for their formulation and use for this purpose are given.
Description
United States Patent Findlay Sept. 25, 1973 EPOXIDIZED I-IYDROCARBON ACID ESTERS HAVING JUVENILE HORMONE ACTIVITY [76] Inventor: John A. Findlay, 682 George St.,
Fredericton, New Brunswick, Canada [22] Filedi Aug. 4, I971 [21] Appl. No.: 169,126
[30] Foreign Application Priority Data Oct. [3, 1970 Canada .r 095,437
[52] US. Cl. 260/348 A, 260/4109, 260/3485 L,
260/348.6, 424/278, 424/305, 424/DIG. l2 [Sl] Int. Cl C07d 1/22 [58] Field of Search 260/348 A Primary ExaminerNorma S. Milestone Attorney-Vito Victor Bellino et al.
[57] ABSTRACT A process is disclosed herein for the preparation of hydrocarbon acid esters of formula,
YW R! in which R and R are alkyl groups containing two to four carbon atoms or R and R together are a poly methylene group containing four to five carbon atoms forming a cyclopentane or cyclohexane ring, R R and R are alkyl groups containing 1 2 carbon atoms and Z and Z together are a carbon-carbon double bond or an epoxide; whereby the appropriate ketone of formula RR C O is condensed with the ylid generated from either 4-oxopentyll -triphenylphosphonium iodide ethylene ketal or 4-oxohexyl-l-triphenylphosphonium iodide ethylene ketal, followed by acid treatment to remove the ketal, and yield the appropriate ketonic intermediate, which is treated successively with either of the preceding ylids and then acid treatment to yield a ketone of formula RR C CHCI-I CI-I CR CHCH CH COR"; the last said compound is then treated with the anion prepared from a dialkylcarbomethoxymethyl or a dialkylcarboethoxymethyl phosphonate to yield the hydrocarbon acid esters of the above formula in which Z and Z together are a carbon-carbon double bond, said last compounds are oxidized to yield the hydrocarbon acid esters of the above formula in which Z and Z together are an epoxide. The hydrocarbon acid esters of this invention are useful for the control of insect populations and methods for their formulation and use for this purpose are given.
2 Claims, N0 Drawings EPOXIDIZED HYDROCARBON ACID ESTERS HAVING JUVENILE HORMONE ACTIVITY In 1967, Roller et al., Angew. Chem. lnternat. Edn., 6, 179 (1967), reported the elucidation of the major component of the extract ofjuvenile hormone from the giant silkworm moth. The structure of this component was established as methyl l-epoxy-7-ethyl-3,1ldimethyl-Z,6-tridecadienoate. This event has sparked an intensive investigation of the chemistry, biochemistry and biological properties ofjuvenile hormone in recent years.
Juvenile hormone appears to control egg ripening and the normal development of the sexually mature insect from the larva. 1n the normal life cycle of the insect, the juvenile hormone must be present at the stage of the immature larva if it is to progress through the normal stages of larval development. However, the juvenile hormone must be absent if the mature larva is to metamorphose into the sexually mature insect. Presence of the juvenile hormone at this point in the development of the insect will prevent the emergence of the sexually mature form capable of reproduction, and contact of the eggs with the juvenile hormone will prevent normal embryonic development. These facts are of great importance in the control of insect populations.
To date a variety of natureal and synthetic compounds have been shown to possess juvenile hormone activity, for example; farnesol, juvabione and methyl 7 ,12-dich1oro-3 ,7 ,12-trimethyldodec-Z-enoate, see C.E. Berkoff, The Chemistry and Biochemistry of Insect Hormones", Quarterly Reviews (The Chemical Society), 23, 372 (1969). However, many of these other compounds are not suitable for the practical control of insect population since they have, in addition, undesirable features such as low potency, complex methods of preparation, or toxic effects to other species.
It is the object of this invention to disclose a simple and efficient process for preparing hydrocarbon acid esters exhibiting potent juvenile hormone activity. These hydrocarbon acid esters possess a very low order of toxicity to species other than insects.
More specifically, this invention relates to a facile preparation of unsaturated hydrocarbon acid esters containing 18 to 25 carbon atoms which may be represented by formula I;
m poow m R l in which R and R represent alkyl groups containing from two to four carbon atoms or R and R together represent a polymethylene radical containing four to five carbon atoms which in conjunction with the carbon atom 11 to which they are bonded form a cyclopentane or cyclohexane ring, respectively; R, R and R represent alkyl groups containing one to two carbon atoms and Z and Z together represent a carboncarbon double bond between carbon atoms and 11 or an epoxide.
Certain intermediates and products of this invention are also included in this invention.
The compounds of formula I of the process of this invention exhibit the biological activities of the juvenile hormone and are useful as means for controlling insect populations. More particularly, these compounds, when tested in standard pharmacological tests used in entomology, for example in the modified Tenebrio test described by Roller et al., in Life Sci., Vol. 4, p. 1617 (1965), exhibit the useful activity of the juvenile hormone. When administered to the test insects in the manner described by Roller et al., cited above, the compounds of this invention of formula 1 cause the formation of typical pupal cuticle over the area of deposition.
For purposes of controlling insect populations, the compounds of this invention of formula I may be formulated in the form of liquid sprays, in solution in suitable solvents such as lipophilic solvents, for example vegetable or mineral oils, or hydrocarbon solvents, or solvents which have both lipophilic or hydrophilic characteristics, for example, lower aliphatic ketones or polyhydric alcohols; or they may be dissolved in a lipophilic solvent such as exemplified above and may be formulated in the form of aqueous emulsions together with suitable surface'active agents such as emulsifiers and/or detergents, and other suitable excipients. They may also be formulated in the form of dusting powders together with suitable solid excipients. Such preparations may contain from 0.1 to mg. of the active ingredient per liter of liquid or per kilogram of solid preparation, and may be applied to areas or to the plants infested by the insects which are to be controlled, by means of sprayingor dusting in the usual manner for controlling insect populations.
According to the process of this invention the hydrocarbon aced esters of formula l may be prepared in the following manner:
The starting materials for the process of the invention are the simple ketones of formula RRC 0 (II), in which R and R are as defined above. Most of these simple ketones are commercially available; the remaining starting materials are prepared by conventional methods. Such conventional methods for preparing ketones and aldehydes are described in textbooks on organic chemistry; for example, see P. Karrer, Organic Chemistry, 2nd ed., Elsevier Publishing Co., Inc., New York, 1946, pp. 149-169 and V. Migrdichian, Organic Synthesis," Vol. 1, Reinhold Publishing Corp., New York, 1957, pp. 100-129.
Condensation of the simple ketones of formula 11 with the ylid generated from either 4-oxopentyl-l-triphenylphosphonium iodide or 4-exehexyl-l-triphenylphosphonium iodide, see Example 1 for preparation, followed by acid treatment, yields the ketone intermediates of formula [II in which R and R are as defined above and R is methyl or ethyl, respectively. The latter compounds are in turn condensed again with either of the above ylids followed by acid treatment to yield the dienone derivative of formula IV in which R, R and R are as described above and R is either methyl or ethyl depending on whether the ylid from 4-oxopentyll-triphenylphosphonium iodide or 4-oxohexyl-1-triphenylphosphonium iodide is used, respectively.
The latter dienones of formula IV are then treated with the anion prepared from a dialkylcarbomethoxymethyl or a dialkylcarbethoxymethyl phosphonate containing from 1 4 carbon atoms in the alkyl groups. The latter compounds are conveniently prepared from methyl or ethyl chloroacetate and the appropriate tiralkyl phosphite in which the alkyl group contains from 1 4 carbon atoms each, and the anion is prepared therefrom by means of an alkali metal alkoxide containing from 1 4 carbon atoms or an alkali metal hydride. There are obtained the hydrocarbon acid methyl, or ethyl, esters of formula I in which R, R R and R are as defined above, R is methyl or ethyl, respectively, and Z and Z together represent a carbon-carbon double bond between carbon atoms and 11.
The latter compounds are converted to the corresponding epoxides, the hydrocarbon acid esters of formula l in which R, R R, R and R are as defined in the first instance and Z and Z together represent an epoxide, by treatment with either a reagent selected from the group, N-bromoand N-chloro-succinimide and N-bromoand N-chloroacetamide, followed by treatment with an alkali metal alkoxide containing 1 4 carbon atoms, or by treatment with an organic peracid.
It will be apparent to those skilled in the art that the compounds of this invention are capable of existing in many isomeric forms. This invention is not concerned with separating such isomers, although means for such separations are obvious to those skilled in the art.
The principal advantage of the process of this invention is the fact that it proceeds from commercially available starting material to the desired final products in good yields and via a pathway involving relatively few steps. In view of the great importance of compounds possessing juvenile hormone activity as means for controlling insect populations, a partically useful process of preparation of such compounds, as described more fully in the following sections, is especially advantageous.
First, 4-oxopentyl-l-triphenylphosphonium iodide ethylene ketal is prepared by treating commercially avaiable 5-chloro-2-pentanone in a solvent with a molar excess of sodium iodide, to obtain the corresponding 5-iodo-2-pentanone. Preferred conditions for this reaction include the use of three equivalents of sodium iodide and of acetone as the solvent, and relfluxing for 0.5 to 2 hours.
5-lodo-2-pentanone thus obtained is ketalized by treatment in a waterimmiscible solvent with a molar excess of ethylene glycol in the presence of small amounts of an acid catalyst, removing water from the reaction mixture as it is being formed. Preferred reaction conditions include the use of three equivalents of ethylene glycol, 0.1 equivalent of p-toluenesulfonic acid, benzene as the solvent, and a water-separating device as part of the equipment. Refluxing the mixture for periods of time of from 8 to 24 hours yields 5-iodo-2- pentanone ethylene ketal.
Said last-named compound is treated with a molar excess of triphenylphosphine at a temperature within the range of from 50 to 150C in an inert solvent to yield 4-oxopentyl-l-triphenylphosphonium idoide ethylene ketal. Preferred reaction conditions include the use of 1.1 equivalents of triphenylphosphine and of benzene as the solvent, and carrying out the reaction at the reflux temperature of the mixture, whereupon the desired compound crystallizes from the reaction mixture in a sufficiently pure state for immediate use.
In a similar manner, 4-oxohexyl-l-triphenylphosphonium iodide ethylene ketal is prepared except that 6-chloro-3-hexanone is used instead of 5-chloro-2- pentanone.
The 4-oxopentyl-b l-triphenylphosphonium iodide ethylene ketal or 4-oxohexyl-l-triphenylphosphonium iodide ethylene ketal, thus prepared, may be converted to their corresponding ylids by treatment with a alkali metal alkoxide containing from one to five carbon atoms or an alkali metal hydride in a common solvent. Subsequent condensation of the appropriate ylid with a ketone of formula II described above, yields the ketone intermediates of formula III, described above, after acid treatment. I have found it convenient to perform this condensation by preparing the ylid in situ in dimethylsufloxide solution by first adding approximately one molar equivalent of sodium hydride to an excess of the solvent, dimethylsulfoxide, to form the sodium methylsulfinyl carbanion. Subsequent addition of a solution of 4-oxopentyl-l-triphenylphosphonium iodide ethylene ketal or 4-oxohexyl-l-triphenylphosphonium iodide ethylene ketal in dimethylsulfoxide, under nitrogen at a temperature within the range of from 1535C, and stirring for a period of time of from 5-30 minutes yields the desired ylid. To this solution of the ylid thus obtained there are added 0.5 1.2 molar equivalents, preferably 0.1 molar equivalents, of the appropriate ketone of formula II, and the mixture is stirred at temperatures of from 20C to the boiling point of the mixture for periods of time of from 15 minutes to 24 hours. Dilution with water, extractions with a water-immiscible solvent, preferably n-pentane, and evaporation of the solvent yields a residue, the ethylene ketal of the ketone intermediate of formula III. The latter compound is preferably not isolated, but the residue obtained as described above is treated in an inert solvent, preferably tetrahydrofuran, with an acid, preferably dilute aqueous hydrochloric acid. In this manner the ketal group is removed and there is obtained the ketone intermediate of formula III.
The next step of this process, the conversion of the ketone intermediate of formula III to the dienone derivative of formula IV, may be accomplished in the same manner as above described conversion of the ketones of formula ll to the ketone intermediates of formula III except that an equivalent amount of the ketone intermediate of fomrula III is used instead of the ketone of formula II. Furthermore, I have found that the above preferred conditions relating to the previous step of the process I] Ill apply equally well to this present step, "I IV, including the conditions for the acid treatment to remove the ketal group from the resulting ethylene ketal derivative.
The dienone derivative of formula IV, thus obtained, is treated with the anion prepared from a dialkylcarbomethoxymethyl or a dialkylcarbethoxymethyl phosphonate, preferably dimethylcarbomethoxymethyl phosphonate, obtained from methyl chloroacetate and trimethyl phosphite according to the method described by PC. Crofts in Quart. Rev. Chem. Soc., 12, 341 (1958) by the action of approximately an equivalent amount of an alkali metal hydride in an inert solvent or by the action of an approximately equivalent amount of an appropriate alkali metal alkoxide containing from one to four carbon atoms in an inert solvent. This anion formation is performed preferably by mixing equivalent molar amounts of the appropriate dialkylcarbomethoxymethyl or dialkylcarbethoxymethyl phosphonate, preferably dimethylcarbomethoxymethyl phosphonate,
with sodium hydride in benzene, stirring the reaction mixture at a temperature of from C to the boiling point of the mixture until the sodium hydride dissolves in the reaction mixture. The alkyl groups in the above compounds contain from 1 4 carbon atoms.
Addition of the appropriate dienone derivative of formula IV, described above, to the prepared solution of one of the above anions yields the corresponding methyl or ethyl ester of formula l in which R, R R, R are as defined in the first instance, R is methyl or ethyl respectively and Z and Z together represent a carbon-carbon double bond between carbon atoms 10 and 11.
Preferred conditions in the above reaction include agitating the reaction mixture at temperatures of from 10C to the boiling point of the mixture for periods of time of from 8 hours to 6 days, dilution with water, extraction with a water-immiscible solvent, and purification by chromatography, preferably on silica gel.
Treatment of the latter compounds of formula I with 0.7 to 1.3 molar equivalents of N-bromoor N- chlorosuccinimide or N-bromoor N-chrloacetamide in solution in a mixture of 1.5 to 4 parts of dimethoxyethane and 1 part of water, followed by treatment of the reaction product with a molar excess of an alkali metal alkoxide containing 1 4 carbon atoms, all reactions being carried out at temperatures of from 10C to 10C, for to 120 minutes in a manner similar to that described by Corey et al., J. Am. Chem. Soc., 90, 5618 (1968), afford the hydrocarbon acid esters of formula l in which RR, R R? and R are as defined in the first instance Z and Z together represent an epoxide. Preferred reaction conditions include the use of 1.1 equivalents of N-bromosuccinimide, of a 3:2 mixture of dimethoxyethane and water as solvent, of 1.1 equivalents of sodium methoxide, of reaction temperatures close to 0C, and of reaction times of 30 to 60 minutes. The desired hydrocarbon acid esters of formula l thus obtained may be purified, preferably by chromatography on silica gel or on alumina.
Alternatively, the above compounds of formula 1 in which Z and Z are a carbon-carbon double bond may be treated with at least one molar equivalent of an organic peracid in an inert solvent at temperatures of from 20C to 20C., from 2 hours to 2 days in a manner similar to that described by K.l-l. Dahm, et al., J. I
Am. Chem. Soc., 89, 5292 (1967). In this manner the hydrocarbon acid esters of formula 1, in which R, R R, R and R are as defined in the first instance and Z and Z together represent an epoxide, are also obtained. Preferred conditions include the use of 1.1 equivalents of perbenzoic or m-chloroperbenzoic acid, ether as solvent, a reaction temperature of 0C and a reaction time of 16 hours. Purification of the desired hydrocarbon acids esters may be effected as described above.
The following formulae, in which R, R R, R, R Z and Z are as defined in the first instance, and Examples are illustrative of this invention.
EXAMPLE 1 l. 4OXOPENTYL-l-TRIPHENYLPHOSPHONlUM IODIDE ETHYLENE KETAL A. 5-Iodo-2-pentanone Commerical 5-chloro-2-pentanone (4.82 g, 0.04 mole) and sodium iodide (180.0 g, 0.12 mole) are dissolved in ml acetone and refluxed for 1 hour. The acetone is evaporated, the residue dissolved in water and extracted twice with ether. The combined ether phases are washed with 0.1 N sodium thiosulfate to remove free iodine, dried over anhydrous magnesium sulfate, filtered, and evaporated, to yield the title compound as a light yellow liquid, y S 2955, 1710 cm 1 3 6.81, 7.44,7.87, 8.00. A sample is purified by distillation to b.p. 94C/14 mm Hg, but partial decomposition occurs during distillation and the bulk of the material is used without purification in the subsequent step.
In one such experiment the yield obtained was 58 per cent of theory. B. 5-lodo-2-pentanone Ethylene Ketal 5-lodo-2-pentanone (68 g, 0.32 mole), obtained as described above, p-toluenesulfonic acid (6.1 g, 0.032 mole), and ethylene glycol (51.8 g, 0.96 mole) are refluxed together with 800 ml benzene in an apparatus equipped with a water separator for 24 hours. The reaction mixture is cooled, diluted with 1,250 ml 5 percent sodium bicarbonate solution, and extracted twice with 625 ml portions of ether. The combined ether extracts are washed with 400 ml. 0.1N sodium thiosulfate to remove excess iodine, dried over soidum sulfate, filtered, evaporated, and the residue is distilled under reduced pressure, to yield the title compound with b.p. 76C/0.05 mm Hg, y ii 2955, 1375, 1115 cm", 'r '3 6.06, 6.75, 8.21, 8.69. C. 4-Oxopentyl-1-tripheny1phosph0nium lodide Ethylene Ketal Triphenylphosphine (11.2 g, 0.0429 mole) is dissolved in 35 ml benzene and 10 ml benzene are distilled off to remove traces of water. 5-lodo-2-pentanone ethylene ketal 10.0 g, 0.039 mole), obtained as described above, is added and the mixture is refluxed for 1 hour. The title compound crystallizes from the reaction mixture, is filtered off and washed with dry ether, m.p. 210215C, y B 1435, 1110 cm. 2. 4-OXOl-1EXYL-l-TRlPl-lENYLPl-IOSPHONIUM lODlDE ETHYLENE KETAL Following the procedures A, B and C of Example 1, part 1, but using an equivalent amount of 6-chloro-3- hexanone, described by B. Helferich and V. Bollert, Chem. Ber., 94, 505 (1961), instead of 5-chloro-2- pentanone, 4-oxohexyl-1-triphenylphosphonium iodide ethylene ketal may be obtained.
EXAMPLE 2 R and R ample I, is added followed by 15 ml of dimethylsulfoxide and the mixture stirred for minutes, forming the corresponding ylid of the phosphonium salt. Then, cyclohexanone (0.98 g., 10 meq.) in 9 ml. of dimethylsulfoxide is added over a period of 10 minutes and the mixture stirred for 1 hours at 6070C. After cooling to 220 C, the reaction mixuture is poured into 200 ml of water and extracted with pentane (100 50 50 50 ml.). The pentane extract is washed with water (3 X 50 ml.), dried over magnesium sulfate and evaporated at room temperature under vacuum, yielding an oil. The oil is dissolved in tetrahydrofuran (TI-IF) (20 ml) and treated with aqueous hydrochloric acid (20 ml. of IN soln.) overnight (14 hr.) at room temperature with stirring. After evaporation of the TI-IF under reduced pressure at room temperature, the aqueous mixture is extracted with ether (20 I5 ml.), and the ether extract washed with water to neutrality, dried over magnesium sulfate and evaporated at room temperature under reduced pressure to yield the title compound, y f 2 l7l9 cm, 73 4.97 (broad unresolved triplet, IH), 7.3 8.2 (complex absorption, 8H 7.87 (singlet, 3H), 8.3 8.7 (broad band, 6H), and the mass spectrum displayed a molecular ion at M/e 166. This product is suitable for the next step, see Example 6. In one experiment performed according to this procedure the yield was 80 percent based on cyclohexanone.
EXAMPLE 3 6-ETI-IYL-5 -OCTEN-2ONE (III; R and R C I-I, and R CH By following the procedure of Example 2 but using an equivalent amount of 3-pentanone instead of cyclohexanone, there is obtained the title compound; 1' 4.97 (broad unresolved triplet, 1H), 7.2 8.3 (complex absorption, 8H), 7.85 (singlet, 3H), 9.03 (triplet, 6H, J II cps); mass spectrum displayed a molecular ion at M/e I54.
EXAMPLE 4 In the same manner as described for Example 2 but using an equivalent amount of cyclopentanone, 3- hexanone, 3-heptanone, 4-heptanone, 4-octanone or 5-nonanone, there may be obtained, 5-cyclopentylidenepentan-Z-one, 6ethyl-5-nonen-2-one, 6-ethyl-5- decen-2-one, 6-propyl-5-nonen-2-one, 6-propyl-5- decen-Z-one and 6-butyl-5-decen-2-one, respectively.
EXAMPLE 5 In the same manner as described for Example 2, but using an equivalent amount of 4-oxohexyl-I-triphenylphosphonium iodide ethylene ketal instead of 4- oxopentyl-l-triphenylphosphonium iodide and one of the appropriate ketones of formula II, cyclohexanone, cyclopentanone, 3-pentanone, 3-hexanone, 3- heptanone, 4-heptanone, 4-octanone or S-nonanone, there may be obtained the ketone intermediates of formula III, 6-cyclohexylidenehexan-3-one, 6- cyclopentylidenehexan-3-one, 7 -ethyl-6-nonen-3-one, 7-ethyl-6-decen-3-one, 7-ethyI-6-undecen-3-one, 7-propyl-6-decen-3-one, 7-propyl-6-undecen-3-one and 7-butyl-6-undecen-3-one, respectively.
EXAMPLE 6 9-CYCLOHEXYLIDENE-6-METHYL-5-NONEN- 2-ONE (IV; R and R together (CH R and R each CH The corresponding ylid of 4-oxopentyl-I-triphenylphosphonium iodide ethylene ketal is prepared in the same manner as described in Example 2, using 0.54 g of the 57 percent oil dispersion of sodium hydride and 5.85 g. of the phosphonium salt. To the thus prepared ylid, 5-cyclohexylidenepentan-Z-one (1.42 g, 8.6 meq.- prepared as described in Example 2, is added instead of cyclohexanone and the reaction is performed under the same conditions as described for Example 2. Following the deketalization step with hydrochloric acid in THF and subsequent working-up according to the description in Example 2, there is obtained the title product as an oil; 'y Z l7l9 cm, T 'S 4.93 (broad unresolved multiplet, 2H), 7.4 8.1 (complex absorption, 12H), 7.87 (singlet, 3H), 8.2 8.7 (complex absorption, 9H). The mass spectrum displayed a molecular ion at M/e 234. This product is suitable for the next step, see Example 12.
In one experiment performed according to this procedure the yield was 76 percent of theory based on 5- cyclohexylidenepentan-Z-one.
EXAMPLE 7 l0-ETHYL-6-METHYLDODECA-5,9-DIEN-2-ONE (IV; R and R C H and R and R CH;,)
By following the procedure of Example 6 but using an equivalent amount of 6-ethyl-5-octen-2-one, prepared as described in Example 3, instead of 5- cyclohexylidenepentan-2-one, there is obtained the title compound; y Z 1719 cm, 13 4.93 (broad unresolved multiplet, 2H), 7.4 8.2 (complex absorption, 12H, 7.87 (singlet, 3H), 8.3 and 8.4 (two broad singlets, partially superimposed, 3H), 9.03 (triplet, 6H, J= l2 c.p.s.). The mass spectrum displayed a molecularion at M/e 222.
EXAMPLE 8 In the same manner as described for Example 6, but using an equivalent amount of 5-cyclopentylidenepentan-2-one, 6-ethyl-5-nonen-2-one, 6-ethyl-5-decen- 2-one, 6-propyl-5-nonen-2-one, 6-propyl-5-decen- 2-one or 6-butyl-5-decen-2-one, prepared as described in Example 4, there may be obtained the dienone derivatives of formula IV, 9-cyclopentylidene-6-methyl-5- nonen-Z-one, l0-ethyl-6-methyltrideca-5,9-dien-2-one, l0-ethyl-6-methyltetradeca-5,9-dien-2-one, l0-propyl- 6-methyltrideca-5,9-dien-2-one, lO-propyl-6- methyltetradeca-S,9-dien-2-one and l0-butyl-6- methyltetradeca-S,9-dien-2-one, respectively.
EXAMPLE 9 In the same manner as described for Example 6, but using an equivalent amount of 6- cyclohexylidenehexan-3-one, 6-
cyclopentylidenehexan-3-one, 7-ethyl-6-nonen-3-one, 7-ethyI-6-decen-3-one, 7-ethyl-6-undecen-3-one, 7-propyl-6-decen-3-one, 7-propyl-6-undecen-3-one or 7-butyl-6-undecen-3-one, prepared as described in Example 5, instead of 5-cyclohexylidenepentan-Z-one,
there may be obtained the dienone derivatives of formula IV, 9-cyclohexylidene-6-ethyl-5-nonen-2-one, 9- cyclopentylidene-6-ethyl-5-nonen-2-one, 6,10-diethyldodeca-5,9-dien-2-one, 6,10-diethyltrideca-S,9-dien- 2-one, 6,10-diethyl-tetradeca-S,9-dien-2-one, 6-ethyllO-propyltrideca-S,9-dien-2-one, 6-ethyl-lO-propyltetradeca-5,9-dien-2-one and lO-butyl-6-ethyltetradeca- 5,9-dien-2-one, respectively.
EXAMPLE 10 methylpentadeca-6, l -dien-3-one, 1 1-propyl-7- methyltetradeca-6,l0-dien-3one, l l-propyl-7- methylpentadeca-6, l O-dien-3-one and 1 1-butyl-7- methylpentadeca-6,l0-dien-3-one; cyclohexylidene-7-ethyl-6-decen-3-one, 10-
cyclopentylidene-7-ethyl-6-decen-3-one, 7,11-diethyltrideca-6,l0-dien-3-one, 7,1l-diethyltetradeca-6,10- dien-3-one, 7,1 1-diethylpentadeca-6,10-dien-3one, 7-ethyl-1 l-propyltetradeca-6,10-dien-3-one, 7-ethyl- 1l'propylpentadeca-,10-dien-3-one and l1-butyl-7- ethylpentadeca-6,10-dien-3-one, respectively.
EXAMPLE ll DIMETHYLCARBOMETl-IOXYMETHYL PHONATE Following the general procedure described by PC. Crofts in Quart. Rev. Chem. Soc., Vol. 12, p. 341 (1958), methyl chloroacetate (1.9 g.) and trimethyl phosphite (16.6 g) are heated together at 160C bath temperature overnight, and the reaction mixture is distilled under reduced pressure to yield the title compound with with hp. 110-135C/35 mm, y f 3 3000, 2900, 1755 cm", T S 6.1, 6.3, 6.8, 7.2. In one experiment carried out according to the above procedure the yield was 42.5 percent of theory.
In the same manner, but using ethyl chloroacetate as starting material, dimethylcarbethoxymethyl phosphonate is obtained.
PHOS- EXAMPLE 12 METHYL-10-CYCLOHEXYLIDENE-3,7- DIMETHYLDECA-2,6-DIENOATE (I, R and R together (CH,) R, R and R each CB and Z and Z together double bond) Sodium hydrode (1.54 g of 57 percent mineral oil dispersion) is washed with pentane 20+10+10 ml) and benzene ml) added with stirring. The resulting suspension is cooled to 15C and dimethylcarbomethoxymethyl phosphonate (6.21 g., 6 X 6.1 meq.), prepared as described in Example 1 l, in benzene (10 ml) is added dropwise with stirring. When the evolution of hydrogen ceases, 9-cyclohexylidene-6-methyl-5- nonen-2-one (1.43 g., 6.1 meq.), prepared as described in Example 6, is added and the mixture refluxed overnight. After cooling the solution is washed with dilute hydrochloric acid (1N), aqueous sodium bicarbonate (0.05 M), water and then dried over magnesium sulphate and evaporated yielding the title compound as a light yellow oil, which on thin layer chromatography (TLC) showed no appreciable amount of starting ketone of formula IV (R and R =--(CH R and R CH This oily product was suitable for the next step, see Example 15.
The product may be purified by column chromatography on silica gel. The title compound is characterized by its infrared and its nuclear magnetic resonance spectra and the molecular weight is confirmed by mass spectroscopy; y 2 1717 and 1647 cm, 1 3 4.31 (singlet, 1H), 4.90 (broad unresolved multiplet, 2H), 6.30 (singlet, 3H), 7.5 8.2 (complex absorption with a prominent double peak at 7.80, 15H), 8.2 8.8 (complex absorption, 91-1); M/e 290.
In one experiment performed according to the above procedure the yield was 94 percent of theory based on 9-cyclohexylidene-6-methyl-5-nonen-2-one.
In the same manner, but using dimethylcarboethoxymethyl phosphonate instead of dimethylcarbomethoxymethyl phosphonate, ethyl l0-cyclohexylidene-3,7- dimethyldeca-2,6-dienoate is obtained.
EXAMPLE 13 METHYL 3,7-DIMETHYL-l l-ETHYLTRIDECA- 2,6,10-TRIENOATE (I; R and R C 11 R R and R CH and Z and Z together double bond) By following the procedure of Example 13 but using an equivalent amount of 10-ethyl-6-methyldodeca-5,9- dien-2-one, prepared as described in Example 7, instead of 9-cyclohexylidene-6-methyl-5-nonen-2-one, there is obtained the title compound; y 2 1717 and 1647 cm, 1 3 4.33 (singlet, 1H), 4.91 (broad unresolved multiplet, 2H), 6.33 (singlet, 31-1), 7.5 8.2 (complex absorption with a prominent double peak at 7.83 and 7.86, 1511), 8.30 and 8.38 (two broad singlets, 3H), 9.03 (triplet, 6H, J= ll cps); M/e 278.
In the same manner, but using dimethylcarboethoxymethyl phosphonate instead of dimethylcarbomethoxymethyl phosphonate, ethyl 3,7-dimethyl-l l-ethyltrideca-2,6,l0-trienoate is obtained.
EXAMPLE 14 In the same manner as described for Example 12, but using an equivalent amount of 9-cyclopentylidene-6- methyl-S-nonen-Z-one, 10-ethyl-6-methyltrideca-5,9- dien-2-one, 10-ethyl-6-methyltetradeca-5,9-dien- 2-one, 10-propyl-6-methyltrideca-5,9-dien-2-one, 10- propyl-6-methyltetradeca-5,9-dien-2-one and l0-butyl- 6-methyltetradeca-5,9-dien-2-one, prepared as described in Example 8; 9-cyclohexylidene-6-ethyl-5- nonen-2-one, 9-cyclopentylidene-6-ethyl-5 -nonen- 2-one, 6,lO-diethyldodeca-S,9-dien-2-one, 6,10- diethyltrideca-S,9-dien-2-one, 6,10-diethyltetradeca- 5,9-dien-2-one, 6-ethyl-lO-propyltrideca-S,9-dien- 2-one, 6-ethyl-lO-propyltetradeca-S,9-dien-2-one, lbutyl-6-ethyltetradeca-5,9-dien-2-one, prepared as described in Example 9 or lO-cyclohexylidene-7-methyl- 6-decen-3-one; l l-ethyl-7-methyltrideca-6,10-dien- 3-one; l0-cyclopentylidene-7-methyl-6-decen-3-one, l l-ethyl-7-methyltetradeca-6,l0-dien-3-one, ll-ethyl- 7-methylpentadeca-6,l0-dien-3-one,
ll-propyl-7-methyltetradeca-6,l0-dien-3-one,l lpropyl-7-methylpentadeca-6,l0-dien-3-one and butyl-7-methylpentadeca-6,10-dien-3-one; 10- cyclohexylidene-7-ethyl-6-decen-3-one, l0- cyclopentylidene-7-ethyl-6-decen-3-one, 7,1l-diethyltrideca-6,l0-dien-3-one, 7,1l-diethyltetradeca-6,l0- dien-3-one, 7,1l-diethylpentadeca-6,10-dien-3-one,7- ethyl-l 1-propyltetradeca-6,10-dien-3-one, 7-ethyl-1 lpropylpentadeca-6,10-dien-3-one and 11-butyl-7- ethylpentadeca-6,10-dien-3-one, prepared as described in Example 10, instead of 9-cyclohexylidene-6-methyl -nonen-2-one and using either dimethylcarbomethoxymethyl phosphonate or dimethylcarboethoxymethyl phosphonate depending on whether the methyl or ethyl ester is desired, there may be obtained the hydrocarbon acid methyl and ethyl esters of formula 1, methyl and ethyl l0-cyclopentylidene-3,7-dimethyldeca-2,6- dienoate, 3,7-dimethyl l l-ethyltetradeca-2,6,10- trienoate 3,7-dimethyl-l l-ethylpentadeca-2,6,l0- trienoate, 3,7-dimethyl-1 l-propyltetradeca-2,6,10- trienoate, 3,7-dimethyl-l l-propylpentadeca-2,6,l0- trienoate, l l-butyl-3,7-dimethyIpentadeca-2,6,l0- trienoate, l0-cyclohexylidene-7-ethyl-3-methyldeca- 2,6-dienoate, deca-2,6-dienoate,
EXAMPLE l5 METHYL 3,7-DlMETHYL-9-( l-OXASPIRO[2.5 OCT-2YL)-2,6-NONADIENOATE l; R and R together -(CH,),-, R, R and R CH and Z and 2 together are an epoxide) Methyl l0-cyclohexylidene-3,7-dimethyldeca-2,6- dienoate (252 mg, 0.87 meq.), prepared as described in Example 12, is dissolved in 15 ml of dimethoxyethane and ml of water. N-Bromosuccinimide (170 mg., 0.96 meq.) is added and the mixture stirred for 1 hour. Extraction with ether (3 X 10 ml), followed by washing with dilute hydrochloric acid (5 ml of l percent), water (2 X 5 ml.), drying over magnesium sulfate and evaporation affords a clear yellow oil.
This crude product is dissolved in absolute methanol (15 ml), cooled to 0C and treated with sodium methoxide (72 mg). After stirring at 0C for one-half hour the solvent is evaporated under reduced pressure, water (10 ml) and ether (10 ml) added, the ethereal layer decanted and the aqueous layer extracted with ether 10 ml.). The joined ethereal extracts are washed with water, dried over magnesium sulfate, and the solvent evaporated to yield an oil which was subjected to preparative TCL on silica gel developing with chloroform. Elution of zones gives the title compound and starting triene ester, methyl l0-cyclohexylidene-3,7- dimethyldeca-2,6-dienoate. The title compound is characterized by its infrared and nuclear magnetic resonance spectra, and the molecular weight of the product is confirmed by mass spectroscopy: 'y Z 1717 and 1647 cm, T '3 4.30 (singlet, 1H), 4.83 (unresolved multiplet, 1H), 6.30 (singlet, 3H), 7.31 (triplet, J= c.p.s.), 7.6-8.1 (complex absorption with two very close singlets at 7.83 and 7.86 (9H), 8.2 8.8 (complex absorption, 15H); M/e 306.
In one experiment performed according to this procedure the yield was 43 percent of theory based on the starting triene ester and 20 percent of the starting triene ester was recovered.
Alternatively, methyl 10-cyclohexylidene-3,7-dimethyldeca2,6-dienoate (252 mg., 0.87 meq.) is dissolved in 40 ml of ether and cooled to 0C. m- Chloroperbenzoic acid (166 mg. 0.96 meq.) in 20 ml. of ether is added and the solution mixed and then allowed to stand at 0C for 16 hours. The mixture is diluted with water and extracted with ether. The ether extract is washed with 5 percent sodium bicarbonate, dried over magnesium sulfate and evaporated to yield the crude title compound as an oil. Purification is effected as described above.
In the same manner, but using an equivalent amount of ethyl 10cyclohexylidene-3,7-dimethyldeca-2,6- dienoate instead of methyl l0-cyclohexylidene-3,7- dimethyldeca-2,6-dienoate, ethyl 3,7-dimethyl-9-(1- oxaspiro[2.5]-oct-2yl)-2,6-nonadienoate may be obtained.
EXAMPLE l6 METHYL 10,11-EPOXY-3,7-DlMETHYL-l l- ETHYLTRlDECA-2,6-D1ENOATE (l, R and B C,H R, R and R CH and Z and Z together.
are an epoxide) By following the procedure of Example 15 but using an equivalent amount of methyl 3,7-dimethyl-1 l-ethyltrideca-2,6,10-trienoate, prepared as described in Example 13, instead of methyl 10-cyclohexylidene-3,7- dimethyldeca-2,6-dienoate, there is obtained the title compound, 'y Z 1717 and 1647 cm; 73 4.33 (singlet, l H), 4.86 (unresolved multiplet, 1H),6.30(singlet, 3H), 7.30 (triplet, J= 9 c.p.s., 1H), 7.81 and 7.84 (two singlets superimposed to a broad band, 9H), 8.30/8.37 (central peaks of a broad unresolved multiplet, 6H), 8.48/8.60 (broad singlets, 3H), 8.87-9.30 (complex absorption, 6H); M/e 294.
In the same manner but using an equivalent amount of ethyl 3,7-dimethyl 11-ethyltrideca-2,6,lO-trienoate instead of the corresponding methyl ester described above, ethyl 10,1l-epoxy-3,7-dimethyl1l-ethyltrideca-2,6-dienoate may be obtained.
EXAMPLE 17' In the same manner as described for Example 15, but using an equivalent amount of the products, the hydrocarbon acid esters of formula I, listed respectively in Example 14, instead of methyl -cyclohexylidene-3,7- dimethyldeca-2,6-dienoate, there may be obtained the corresponding hydrocarbon acid methyl and ethyl esters of formula I, listed respectively below, in which Z and Z together represent a 10,11-epoxide:
Methyl and ethyl 3,7-dimethyl-9-(1-oxaspiro[2l4]- hept-2y1)-2,6-nonadienoate,
10,1 1-Epoxy-3,7-dimethy1-l l-ethyltetradeca-2,6-
10,1 1-Epoxy-7-ethy1-3-methyl-1 1 -propy1tetradeca- 2,6-dienoate,
10,1 1-Epoxy-7-ethyl-3-methyl-1 l-propylpentadeca- 2,6-dienoate,
10,1 l-Epoxy-l 1-buty1-7-ethy1-3-methylpentadeca- 2,6-dienoate,
3-Ethyl-7-methyl-9-( 1 -oxaspiro[2.5 ]-oct-2yl)-2,6-
- nonadienate,
3-Etl1yl-7-methyl-9-(1-oxaspiro[2.4]-hept-2yl)-2,6-
nonadienoate,
10,1 l-Epoxy-3,1 l-diethyl-7-methyltrideca-2,6-
dienoate,
l0,11-Epoxy-3,l1-diethyl-7'methyltetradeca-Z 6- dienoate,
10,11-Epoxy-3,11-diethy1-7-methylpentadeca-2.6-
dienoate,
10,1 l-Epoxy-3-ethyl-7-methyl-l l-propyltetradeca- 2,6-dienoate,
10,1l-Epoxy-3-ethyl-7-methyl-l1-propylpentadeca- 2,6-dienoate,
10,11-Epoxy-ll-butyl-3-ethyl-7-methylpentadeca- 2,6-dienoate,
3,7-diethyl-9-( l-oxaspiro[2.5 ]-oct-2yl)-2,6-
nonadienoate,
3,7-diethyl-9-(1-oxaspiro[2.4]-hept-2yl)-2,6-
nonadienoate,
10,1 l-Epoxy-3,7,l l-triethyltrideca-2,6-dienoate,
10,1 1-Epoxy-3,7,11-triethyltetradeca-2,6-dienoate,
10,1 l-Epoxy-3,7,l 1-triethylpentadeca-2,-dienoate,
10,1l-Epoxy-3,7-diethyl-1 1-propyltetradeca-2,6-
dienoate,
10,1 l-Epoxy-3,7-diethyl-l l-propylpentadeca-2,6-
dienoate and,
10,1l-Epoxy-l1-butyl-3,7-diethylpentadeca-2,6-
dienoate.
The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:
1. Compounds of the formula COOR
Claims (1)
- 2. A compound as claimed in claim 1 wherein R1 and R2 together are a polymethylene radical containing five carbon atoms and wherein each of R3, R4 and R5 is methyl.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CA095,437A CA939369A (en) | 1970-10-13 | 1970-10-13 | Process for preparing hydrocarbon acid esters |
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Publication Number | Publication Date |
---|---|
US3761495A true US3761495A (en) | 1973-09-25 |
Family
ID=4087770
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US00169126A Expired - Lifetime US3761495A (en) | 1970-10-13 | 1971-08-04 | Epoxidized hydrocarbon acid esters having juvenile hormone activity |
Country Status (2)
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US (1) | US3761495A (en) |
CA (1) | CA939369A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3931257A (en) * | 1973-08-24 | 1976-01-06 | Hoffmann-La Roche Inc. | Polyene compounds |
-
1970
- 1970-10-13 CA CA095,437A patent/CA939369A/en not_active Expired
-
1971
- 1971-08-04 US US00169126A patent/US3761495A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3931257A (en) * | 1973-08-24 | 1976-01-06 | Hoffmann-La Roche Inc. | Polyene compounds |
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