JP6466477B2 - フェニルインダン光開始剤の製法 - Google Patents
フェニルインダン光開始剤の製法 Download PDFInfo
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- JP6466477B2 JP6466477B2 JP2016572386A JP2016572386A JP6466477B2 JP 6466477 B2 JP6466477 B2 JP 6466477B2 JP 2016572386 A JP2016572386 A JP 2016572386A JP 2016572386 A JP2016572386 A JP 2016572386A JP 6466477 B2 JP6466477 B2 JP 6466477B2
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- 238000002360 preparation method Methods 0.000 title claims description 5
- VNAFWALXWOAPCK-UHFFFAOYSA-N 1-phenyl-2,3-dihydro-1h-indene Chemical compound C1CC2=CC=CC=C2C1C1=CC=CC=C1 VNAFWALXWOAPCK-UHFFFAOYSA-N 0.000 title description 2
- 150000001875 compounds Chemical class 0.000 claims description 55
- RWGFKTVRMDUZSP-UHFFFAOYSA-N cumene Chemical compound CC(C)C1=CC=CC=C1 RWGFKTVRMDUZSP-UHFFFAOYSA-N 0.000 claims description 25
- 239000000539 dimer Substances 0.000 claims description 14
- 229910052794 bromium Inorganic materials 0.000 claims description 13
- 229910052801 chlorine Inorganic materials 0.000 claims description 13
- 238000005917 acylation reaction Methods 0.000 claims description 12
- 230000010933 acylation Effects 0.000 claims description 11
- 239000000243 solution Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 239000003377 acid catalyst Substances 0.000 claims description 7
- 230000026030 halogenation Effects 0.000 claims description 7
- 238000005658 halogenation reaction Methods 0.000 claims description 7
- -1 alkali metal alkoxide Chemical class 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical group [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 4
- 230000007062 hydrolysis Effects 0.000 claims description 4
- 238000006460 hydrolysis reaction Methods 0.000 claims description 4
- 239000002841 Lewis acid Substances 0.000 claims description 3
- 229910052783 alkali metal Inorganic materials 0.000 claims description 3
- 239000003456 ion exchange resin Substances 0.000 claims description 3
- 229920003303 ion-exchange polymer Polymers 0.000 claims description 3
- 150000007517 lewis acids Chemical class 0.000 claims description 3
- 150000007522 mineralic acids Chemical class 0.000 claims description 3
- 125000001174 sulfone group Chemical group 0.000 claims description 3
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical group C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims description 2
- YOCIJWAHRAJQFT-UHFFFAOYSA-N 2-bromo-2-methylpropanoyl bromide Chemical compound CC(C)(Br)C(Br)=O YOCIJWAHRAJQFT-UHFFFAOYSA-N 0.000 claims description 2
- DTZKVZKYSZUBAG-UHFFFAOYSA-N 2-chloro-2-methylpropanoyl chloride Chemical compound CC(C)(Cl)C(Cl)=O DTZKVZKYSZUBAG-UHFFFAOYSA-N 0.000 claims description 2
- DGMOBVGABMBZSB-UHFFFAOYSA-N 2-methylpropanoyl chloride Chemical group CC(C)C(Cl)=O DGMOBVGABMBZSB-UHFFFAOYSA-N 0.000 claims description 2
- 239000011260 aqueous acid Substances 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 238000002425 crystallisation Methods 0.000 claims description 2
- 230000008025 crystallization Effects 0.000 claims description 2
- GRONZTPUWOOUFQ-UHFFFAOYSA-M sodium;methanol;hydroxide Chemical compound [OH-].[Na+].OC GRONZTPUWOOUFQ-UHFFFAOYSA-M 0.000 claims description 2
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims 2
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 21
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 15
- 239000002904 solvent Substances 0.000 description 14
- 239000000460 chlorine Substances 0.000 description 9
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 8
- 239000000203 mixture Substances 0.000 description 7
- 238000003786 synthesis reaction Methods 0.000 description 7
- RFFLAFLAYFXFSW-UHFFFAOYSA-N 1,2-dichlorobenzene Chemical compound ClC1=CC=CC=C1Cl RFFLAFLAYFXFSW-UHFFFAOYSA-N 0.000 description 6
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 6
- 239000000047 product Substances 0.000 description 4
- 239000008247 solid mixture Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 150000001266 acyl halides Chemical class 0.000 description 3
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 description 3
- 238000007363 ring formation reaction Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- QPFMBZIOSGYJDE-UHFFFAOYSA-N 1,1,2,2-tetrachloroethane Chemical compound ClC(Cl)C(Cl)Cl QPFMBZIOSGYJDE-UHFFFAOYSA-N 0.000 description 2
- XWSSGICWOAGIQT-UHFFFAOYSA-N 2-chloro-1-[4-(2-chloropropan-2-yl)phenyl]-2-methylpropan-1-one Chemical compound ClC(C(=O)C1=CC=C(C=C1)C(C)(C)Cl)(C)C XWSSGICWOAGIQT-UHFFFAOYSA-N 0.000 description 2
- NWLQNWLHBBNMFJ-UHFFFAOYSA-N 2-chloro-1-[4-[6-(2-chloro-2-methylpropanoyl)-1,3,3-trimethyl-2h-inden-1-yl]phenyl]-2-methylpropan-1-one Chemical compound C1=CC(C(=O)C(C)(Cl)C)=CC=C1C1(C)C2=CC(C(=O)C(C)(C)Cl)=CC=C2C(C)(C)C1 NWLQNWLHBBNMFJ-UHFFFAOYSA-N 0.000 description 2
- NLSDESGMVSPARQ-UHFFFAOYSA-N 2-chloro-2-methyl-1-(4-propan-2-ylphenyl)propan-1-one Chemical compound CC(C)C1=CC=C(C(=O)C(C)(C)Cl)C=C1 NLSDESGMVSPARQ-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- PCLIMKBDDGJMGD-UHFFFAOYSA-N N-bromosuccinimide Chemical compound BrN1C(=O)CCC1=O PCLIMKBDDGJMGD-UHFFFAOYSA-N 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 235000019400 benzoyl peroxide Nutrition 0.000 description 2
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000012074 organic phase Substances 0.000 description 2
- IXZDIALLLMRYOU-UHFFFAOYSA-N tert-butyl hypochlorite Chemical compound CC(C)(C)OCl IXZDIALLLMRYOU-UHFFFAOYSA-N 0.000 description 2
- 239000013638 trimer Substances 0.000 description 2
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 description 1
- YZUPZGFPHUVJKC-UHFFFAOYSA-N 1-bromo-2-methoxyethane Chemical compound COCCBr YZUPZGFPHUVJKC-UHFFFAOYSA-N 0.000 description 1
- VEIIEWOTAHXGKS-UHFFFAOYSA-N 1-phenylethenol Chemical class OC(=C)C1=CC=CC=C1 VEIIEWOTAHXGKS-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- 238000005727 Friedel-Crafts reaction Methods 0.000 description 1
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 1
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 229920006397 acrylic thermoplastic Polymers 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 150000001908 cumenes Chemical class 0.000 description 1
- 125000002592 cumenyl group Chemical group C1(=C(C=CC=C1)*)C(C)C 0.000 description 1
- 238000006471 dimerization reaction Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 150000002085 enols Chemical class 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- LYGJENNIWJXYER-UHFFFAOYSA-N nitromethane Chemical compound C[N+]([O-])=O LYGJENNIWJXYER-UHFFFAOYSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000006303 photolysis reaction Methods 0.000 description 1
- 230000015843 photosynthesis, light reaction Effects 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- FZYCEURIEDTWNS-UHFFFAOYSA-N prop-1-en-2-ylbenzene Chemical compound CC(=C)C1=CC=CC=C1.CC(=C)C1=CC=CC=C1 FZYCEURIEDTWNS-UHFFFAOYSA-N 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- YBBRCQOCSYXUOC-UHFFFAOYSA-N sulfuryl dichloride Chemical compound ClS(Cl)(=O)=O YBBRCQOCSYXUOC-UHFFFAOYSA-N 0.000 description 1
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 description 1
- JRMUNVKIHCOMHV-UHFFFAOYSA-M tetrabutylammonium bromide Chemical compound [Br-].CCCC[N+](CCCC)(CCCC)CCCC JRMUNVKIHCOMHV-UHFFFAOYSA-M 0.000 description 1
- ITMCEJHCFYSIIV-UHFFFAOYSA-N triflic acid Chemical class OS(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-N 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
- C07C49/76—Ketones containing a keto group bound to a six-membered aromatic ring
- C07C49/82—Ketones containing a keto group bound to a six-membered aromatic ring containing hydroxy groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/06—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing polymers
- B01J31/08—Ion-exchange resins
- B01J31/10—Ion-exchange resins sulfonated
-
- 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
- C07C45/45—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by condensation
- C07C45/46—Friedel-Crafts reactions
-
- 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
- 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
- C07C45/64—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 functional groups containing oxygen only in singly bound form
-
- 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
-
- 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
- C07C45/78—Separation; Purification; Stabilisation; Use of additives
- C07C45/81—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
- C07C49/76—Ketones containing a keto group bound to a six-membered aromatic ring
- C07C49/80—Ketones containing a keto group bound to a six-membered aromatic ring containing halogen
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2602/00—Systems containing two condensed rings
- C07C2602/02—Systems containing two condensed rings the rings having only two atoms in common
- C07C2602/04—One of the condensed rings being a six-membered aromatic ring
- C07C2602/08—One of the condensed rings being a six-membered aromatic ring the other ring being five-membered, e.g. indane
Description
クメン(20.0g、0.165モル)及び塩化α−クロロ−i−ブチリル(24.7g、0.173モル)の塩化メチレン(250g)溶液を、窒素雰囲気下、5℃において撹拌した。溶液に、同じ温度において、塩化アルミニウム(24.2g、0.182モル)を少量ずつ90分間で添加した。さらに1時間撹拌した後、撹拌しながら、溶液を氷水に注いだ。有機相を水で洗浄し、塩化メチレンを真空下で留去して、透明なオイル38.0gを得た。収量:定量的。
H1NMR (CDCl3, δ ppm): 1.26(d, 6H), 1.85(s, 6H), 2.95(m, 1H), 7.29(d, 2H), 8.13(d, 2H)
2−クロロ−1−(4−イソプロピルフェニル)−2−メチルプロパン−1−オン(10.0g、0.045モル)を、クロロベンゼン(73g)に溶解し、室温において、撹拌下、窒素によって脱酸素化した。ついで、溶液を−10℃に冷却し、次亜塩素酸t−ブチル(7.24g、0.067モル;Organic Syntheses,Coll.Vol.5,184(1973)に記載のようにして調製)を一度に添加して、黄色の溶液を得た。溶液が脱色し、温度が20℃に上昇するまで、撹拌した溶液に、300W Osram Ultra Vitaluxランプにて照明した。室温に冷却した後、溶媒を真空下で留去して、透明なオイル11gを得た。収量:定量的。
H1NMR (CDCl3, δ ppm): 1.86(s, 6H), 1.95(s, 6H), 7.15(d, 2H), 8.13(d, 2H)
2−クロロ−1−(4−(2−クロロプロパン−2−イル)フェニル)−2−メチルプロパン−1−オン(8.30g、0.032モル)を、触媒アンバーリスト15 1.50gの存在下、撹拌しながら、135℃で加熱した。5時間後、反応が完了した(TLC SiO2、トルエン)。冷却後、固状物を塩化メチレンに溶解し、触媒を濾去した。溶媒を減圧留去した後、オイル5.89g(収率82.5%)を得た。該オイルは、静置後、固化した。サンプルをトルエン中で結晶化して、白色の固体を得た(融点:139〜140℃)。収量:定量的。
H1NMR (CDCl3, δ ppm): 1.03(s, 3H), 1.38(s, 3H), 1.73(s, 3H), 1.86(m, 12H), 2.26(d, 1H), 2.47(d, 1H), 7.25(m, 3H), 7.92(s, 1H), 8.07(d, 2H), 8.18(d, 1H)
5−(2−クロロ−2−メチル−1−オキソ−プロピ−1−イル)−3−(4−(2−クロロ−2−メチル−1−オキソ−プロピ−1−イル)フェニル)−2,3−ジヒドロ−1,1,3−トリメチル−1H−インデン(5.2g、0.011モル)を、塩化メチレン(30g)に溶解し、30%NaOH水溶液(7.30g、0.055モル)を添加した。臭化テトラブチルアンモニウム(0.10g)の存在下において、混合物を加熱還流した。8時間後、反応が完了した(TLC SiO2、トルエン:酢酸エチル8:2)。有機相を水で洗浄し、硫酸ナトリウムにて乾燥し、溶媒の蒸発後、化合物4.5gをオイルとして得た。該オイルは、静置後、固化した。サンプルをトルエン中で結晶化して、白色の粉末を得た(融点:117〜118℃)。収量:定量的。
H1NMR (CDCl3, δ ppm): 1.04(s, 3H), 1.37(s, 3H), 1.61(m, 12H), 1.73(s, 3H), 2.25(d, 1H), 2.46(d, 1H), 3.90-4.10(bs, 2OH), 7.25(m, 3H), 7.80(s, 1H), 7.92(d, 2H), 8.00(d, 1H)
Claims (10)
- 5−[4−(2−ヒドロキシ−2−メチル)−1−オキソ−プロピ−1−イル]−3−[4−(2−ヒドロキシ−2−メチル)−1−オキソ−プロピ−1−イル−フェニル]−2,3−ジヒドロ−1,1,3−トリメチル−1H−インデン(二量体の異性体5)の製法であって、該方法は、下記の工程:
i.下記のスキームに従って、クメンを、式Ia(ここで、X0はCl又はBrであり及びX1はCl又はBrである)の化合物にてアシル化して、式IIaの化合物を得て、該式IIaの化合物をハロゲン化して、式IIIa(ここで、X1及びX2は、独立して、Cl又はBrである)の化合物を得るか、又はクメンを、式Ib(ここで、X0はCl又はBrである)の化合物にてアシル化して、式IIbの化合物を得て、該式IIbの化合物をハロゲン化して、式IIIb(ここで、X1は、Cl又はBrである)の化合物を得る工程;
を含んでなることを特徴とする二量体の異性体5の製法。 - 式Iaの化合物が、塩化α−クロロイソブチリル又は臭化α−ブロモイソブチリルである請求項1に記載の二量体の異性体5の製法。
- 式Ibの化合物が塩化イソブチリルである請求項1に記載の二量体の異性体5の製法。
- 工程iにおいて、クメン1モル当たり、式Ia又はIbの化合物1.50〜1.10モル及びルイス酸1.5〜0.1モルを使用する請求項1に記載の二量体の異性体5の製法。
- 工程iiにおいて、酸触媒が、酸型のスルホン基を有するイオン交換樹脂又は無機酸である請求項1に記載の二量体の異性体5の製法。
- 工程iiiにおいて、式IVの化合物を、アルカリ金属アルコキシドとの反応及び続く酸水溶液による加水分解反応によって加水分解する請求項1に記載の二量体の異性体5の製法。
- アルカリ金属アルコキシドがナトリウムメチラートである請求項6に記載の二量体の異性体5の製法。
- 工程iiiにおいて、式IVの化合物を、アルカリ金属水酸化物による反応によって加水分解する請求項1に記載の二量体の異性体5の製法。
- アルカリ金属水酸化物が、30%NaOHメタノール溶液又は水溶液である請求項8に記載の二量体の異性体5の製法。
- 式Vの化合物を、工程iiiの完了後、結晶化によって、固状かつ純粋な形で得る請求項1〜9のいずれかに記載の二量体の異性体5の製法。
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