CN111233631A - 一种制备3,4-二羟基苯乙醇的方法 - Google Patents
一种制备3,4-二羟基苯乙醇的方法 Download PDFInfo
- Publication number
- CN111233631A CN111233631A CN202010069618.9A CN202010069618A CN111233631A CN 111233631 A CN111233631 A CN 111233631A CN 202010069618 A CN202010069618 A CN 202010069618A CN 111233631 A CN111233631 A CN 111233631A
- Authority
- CN
- China
- Prior art keywords
- preparing
- dibenzyloxy
- benzene
- dihydroxy
- potassium
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 52
- JUUBCHWRXWPFFH-UHFFFAOYSA-N Hydroxytyrosol Chemical compound OCCC1=CC=C(O)C(O)=C1 JUUBCHWRXWPFFH-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 238000006243 chemical reaction Methods 0.000 claims abstract description 35
- YHNZJTUHWZLFPR-UHFFFAOYSA-N 1,2-bis(phenylmethoxy)-4-(2-phenylmethoxyethenyl)benzene Chemical compound C(C1=CC=CC=C1)OC1=C(C=C(C=C1)C=COCC1=CC=CC=C1)OCC1=CC=CC=C1 YHNZJTUHWZLFPR-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000002904 solvent Substances 0.000 claims description 20
- -1 benzyloxy methyl triphenyl phosphonium chloride Chemical compound 0.000 claims description 17
- IBGBGRVKPALMCQ-UHFFFAOYSA-N 3,4-dihydroxybenzaldehyde Chemical compound OC1=CC=C(C=O)C=C1O IBGBGRVKPALMCQ-UHFFFAOYSA-N 0.000 claims description 16
- XDDLXZHBWVFPRG-UHFFFAOYSA-N 3,4-bis(phenylmethoxy)benzaldehyde Chemical compound C=1C=CC=CC=1COC1=CC(C=O)=CC=C1OCC1=CC=CC=C1 XDDLXZHBWVFPRG-UHFFFAOYSA-N 0.000 claims description 15
- XDSIUDMMHGFGHK-UHFFFAOYSA-N benzene-1,2-diol;ethanol Chemical compound CCO.OC1=CC=CC=C1O XDSIUDMMHGFGHK-UHFFFAOYSA-N 0.000 claims description 11
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 claims description 10
- 239000003054 catalyst Substances 0.000 claims description 10
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 10
- 238000002360 preparation method Methods 0.000 claims description 10
- MFRIHAYPQRLWNB-UHFFFAOYSA-N sodium tert-butoxide Chemical compound [Na+].CC(C)(C)[O-] MFRIHAYPQRLWNB-UHFFFAOYSA-N 0.000 claims description 10
- 239000011261 inert gas Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 9
- PCYGLFXKCBFGPC-UHFFFAOYSA-N 3,4-Dihydroxy hydroxymethyl benzene Natural products OCC1=CC=C(O)C(O)=C1 PCYGLFXKCBFGPC-UHFFFAOYSA-N 0.000 claims description 8
- LADPCMZCENPFGV-UHFFFAOYSA-N chloromethoxymethylbenzene Chemical compound ClCOCC1=CC=CC=C1 LADPCMZCENPFGV-UHFFFAOYSA-N 0.000 claims description 7
- 238000005984 hydrogenation reaction Methods 0.000 claims description 7
- GJPGLLAXZTYTFW-UHFFFAOYSA-M triphenyl(phenylmethoxymethyl)phosphanium;chloride Chemical compound [Cl-].C=1C=CC=CC=1COC[P+](C=1C=CC=CC=1)(C=1C=CC=CC=1)C1=CC=CC=C1 GJPGLLAXZTYTFW-UHFFFAOYSA-M 0.000 claims description 7
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 claims description 6
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 6
- LPNYRYFBWFDTMA-UHFFFAOYSA-N potassium tert-butoxide Chemical compound [K+].CC(C)(C)[O-] LPNYRYFBWFDTMA-UHFFFAOYSA-N 0.000 claims description 6
- FJDQFPXHSGXQBY-UHFFFAOYSA-L caesium carbonate Chemical compound [Cs+].[Cs+].[O-]C([O-])=O FJDQFPXHSGXQBY-UHFFFAOYSA-L 0.000 claims description 5
- 229910000024 caesium carbonate Inorganic materials 0.000 claims description 5
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 5
- 235000011181 potassium carbonates Nutrition 0.000 claims description 5
- BDAWXSQJJCIFIK-UHFFFAOYSA-N potassium methoxide Chemical compound [K+].[O-]C BDAWXSQJJCIFIK-UHFFFAOYSA-N 0.000 claims description 5
- JGFZNNIVVJXRND-UHFFFAOYSA-N N,N-Diisopropylethylamine (DIPEA) Chemical compound CCN(C(C)C)C(C)C JGFZNNIVVJXRND-UHFFFAOYSA-N 0.000 claims description 4
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 4
- ZCSHNCUQKCANBX-UHFFFAOYSA-N lithium diisopropylamide Chemical compound [Li+].CC(C)[N-]C(C)C ZCSHNCUQKCANBX-UHFFFAOYSA-N 0.000 claims description 4
- RIOQSEWOXXDEQQ-UHFFFAOYSA-O triphenylphosphanium Chemical compound C1=CC=CC=C1[PH+](C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-O 0.000 claims description 4
- RIOQSEWOXXDEQQ-UHFFFAOYSA-N triphenylphosphine Chemical compound C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 RIOQSEWOXXDEQQ-UHFFFAOYSA-N 0.000 claims description 4
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims description 3
- 229910000028 potassium bicarbonate Inorganic materials 0.000 claims description 3
- 235000015497 potassium bicarbonate Nutrition 0.000 claims description 3
- 239000011736 potassium bicarbonate Substances 0.000 claims description 3
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 claims description 3
- ZRQLVVDHVBUPEZ-UHFFFAOYSA-N 1,2-dimethoxy-4-(2-methoxyethenyl)benzene Chemical compound COC=CC1=CC=C(OC)C(OC)=C1 ZRQLVVDHVBUPEZ-UHFFFAOYSA-N 0.000 claims description 2
- 230000009471 action Effects 0.000 claims description 2
- AGEZXYOZHKGVCM-UHFFFAOYSA-N benzyl bromide Chemical compound BrCC1=CC=CC=C1 AGEZXYOZHKGVCM-UHFFFAOYSA-N 0.000 claims description 2
- KCXMKQUNVWSEMD-UHFFFAOYSA-N benzyl chloride Chemical group ClCC1=CC=CC=C1 KCXMKQUNVWSEMD-UHFFFAOYSA-N 0.000 claims description 2
- 229940073608 benzyl chloride Drugs 0.000 claims description 2
- UBJFKNSINUCEAL-UHFFFAOYSA-N lithium;2-methylpropane Chemical compound [Li+].C[C-](C)C UBJFKNSINUCEAL-UHFFFAOYSA-N 0.000 claims description 2
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims 2
- DWGPKVSAWGQTPQ-UHFFFAOYSA-N 4-(2-hydroxypropyl)benzene-1,2-diol Chemical compound CC(O)CC1=CC=C(O)C(O)=C1 DWGPKVSAWGQTPQ-UHFFFAOYSA-N 0.000 claims 1
- FWVCVMWGODDKSU-UHFFFAOYSA-N chloro-triphenyl-(phenylmethoxymethyl)-$l^{5}-phosphane Chemical compound C=1C=CC=CC=1P(C=1C=CC=CC=1)(Cl)(C=1C=CC=CC=1)COCC1=CC=CC=C1 FWVCVMWGODDKSU-UHFFFAOYSA-N 0.000 claims 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims 1
- 229910000029 sodium carbonate Inorganic materials 0.000 claims 1
- 235000017550 sodium carbonate Nutrition 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 13
- 230000008901 benefit Effects 0.000 abstract description 5
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 5
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 231100000086 high toxicity Toxicity 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 1
- TWEIZOLWSMTHII-UHFFFAOYSA-N methyl-triphenyl-phenylmethoxy-$l^{5}-phosphane Chemical compound C=1C=CC=CC=1P(C=1C=CC=CC=1)(C)(C=1C=CC=CC=1)OCC1=CC=CC=C1 TWEIZOLWSMTHII-UHFFFAOYSA-N 0.000 abstract 1
- 231100000419 toxicity Toxicity 0.000 abstract 1
- 230000001988 toxicity Effects 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 12
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 12
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 12
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 10
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 8
- 238000001035 drying Methods 0.000 description 8
- 238000001816 cooling Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 238000001914 filtration Methods 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 238000006722 reduction reaction Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 5
- CFFZDZCDUFSOFZ-UHFFFAOYSA-N 3,4-Dihydroxy-phenylacetic acid Chemical compound OC(=O)CC1=CC=C(O)C(O)=C1 CFFZDZCDUFSOFZ-UHFFFAOYSA-N 0.000 description 4
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- 229910052786 argon Inorganic materials 0.000 description 4
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 description 4
- 238000010511 deprotection reaction Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 239000012065 filter cake Substances 0.000 description 4
- 239000012074 organic phase Substances 0.000 description 4
- 239000007858 starting material Substances 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- JWUJQDFVADABEY-UHFFFAOYSA-N 2-methyltetrahydrofuran Chemical compound CC1CCCO1 JWUJQDFVADABEY-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- KZMGYPLQYOPHEL-UHFFFAOYSA-N boron trifluoride etherate Substances FB(F)F.CCOCC KZMGYPLQYOPHEL-UHFFFAOYSA-N 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000008096 xylene Substances 0.000 description 3
- KWOLFJPFCHCOCG-UHFFFAOYSA-N Acetophenone Chemical compound CC(=O)C1=CC=CC=C1 KWOLFJPFCHCOCG-UHFFFAOYSA-N 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 240000007817 Olea europaea Species 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- GWBWGPRZOYDADH-UHFFFAOYSA-N [C].[Na] Chemical compound [C].[Na] GWBWGPRZOYDADH-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 2
- 238000004440 column chromatography Methods 0.000 description 2
- 238000006193 diazotization reaction Methods 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- RRAFCDWBNXTKKO-UHFFFAOYSA-N eugenol Chemical compound COC1=CC(CC=C)=CC=C1O RRAFCDWBNXTKKO-UHFFFAOYSA-N 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 239000005457 ice water Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- UKVIEHSSVKSQBA-UHFFFAOYSA-N methane;palladium Chemical compound C.[Pd] UKVIEHSSVKSQBA-UHFFFAOYSA-N 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- WEVYAHXRMPXWCK-UHFFFAOYSA-N methyl cyanide Natural products CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 2
- 239000012452 mother liquor Substances 0.000 description 2
- 238000006396 nitration reaction Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- NXJCBFBQEVOTOW-UHFFFAOYSA-L palladium(2+);dihydroxide Chemical compound O[Pd]O NXJCBFBQEVOTOW-UHFFFAOYSA-L 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- RTWOAVKBRMACKZ-UHFFFAOYSA-N 1-(3,4-dimethoxyphenyl)ethanol Chemical compound COC1=CC=C(C(C)O)C=C1OC RTWOAVKBRMACKZ-UHFFFAOYSA-N 0.000 description 1
- YCCILVSKPBXVIP-UHFFFAOYSA-N 2-(4-hydroxyphenyl)ethanol Chemical compound OCCC1=CC=C(O)C=C1 YCCILVSKPBXVIP-UHFFFAOYSA-N 0.000 description 1
- RGHMISIYKIHAJW-UHFFFAOYSA-N 3,4-dihydroxymandelic acid Chemical compound OC(=O)C(O)C1=CC=C(O)C(O)=C1 RGHMISIYKIHAJW-UHFFFAOYSA-N 0.000 description 1
- IBZODTWIUCAAQG-UHFFFAOYSA-N 3-[3,4-bis(phenylmethoxy)phenyl]-2-(n-methylanilino)prop-2-enenitrile Chemical compound C=1C=CC=CC=1N(C)C(C#N)=CC(C=C1OCC=2C=CC=CC=2)=CC=C1OCC1=CC=CC=C1 IBZODTWIUCAAQG-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- 229910015900 BF3 Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- NPBVQXIMTZKSBA-UHFFFAOYSA-N Chavibetol Natural products COC1=CC=C(CC=C)C=C1O NPBVQXIMTZKSBA-UHFFFAOYSA-N 0.000 description 1
- 239000005770 Eugenol Substances 0.000 description 1
- 239000012448 Lithium borohydride Substances 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- UVMRYBDEERADNV-UHFFFAOYSA-N Pseudoeugenol Natural products COC1=CC(C(C)=C)=CC=C1O UVMRYBDEERADNV-UHFFFAOYSA-N 0.000 description 1
- DSVGQVZAZSZEEX-UHFFFAOYSA-N [C].[Pt] Chemical compound [C].[Pt] DSVGQVZAZSZEEX-UHFFFAOYSA-N 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 125000003172 aldehyde group Chemical group 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 description 1
- 125000006278 bromobenzyl group Chemical group 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 239000002327 cardiovascular agent Substances 0.000 description 1
- 229940125692 cardiovascular agent Drugs 0.000 description 1
- 210000000845 cartilage Anatomy 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 125000004803 chlorobenzyl group Chemical group 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001335 demethylating effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 229960002217 eugenol Drugs 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229940095066 hydroxytyrosol Drugs 0.000 description 1
- 235000003248 hydroxytyrosol Nutrition 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 231100001231 less toxic Toxicity 0.000 description 1
- 239000012280 lithium aluminium hydride Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 239000004006 olive oil Substances 0.000 description 1
- 235000008390 olive oil Nutrition 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- DZLFLBLQUQXARW-UHFFFAOYSA-N tetrabutylammonium Chemical compound CCCC[N+](CCCC)(CCCC)CCCC DZLFLBLQUQXARW-UHFFFAOYSA-N 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/01—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis
- C07C37/055—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis the substituted group being bound to oxygen, e.g. ether group
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/01—Preparation of ethers
- C07C41/18—Preparation of ethers by reactions not forming ether-oxygen bonds
- C07C41/30—Preparation of ethers by reactions not forming ether-oxygen bonds by increasing the number of carbon atoms, e.g. by oligomerisation
-
- 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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
本发明公开了一种制备3,4‑二羟基苯乙醇的方法,该方法包括如下步骤:①苄氧基甲基三苯基氯化磷的制备;②3.4‑二苄氧基苯甲醛的制备;③1,2‑二苄氧基‑4‑(2‑苄氧基乙烯基)苯的制备;④3,4‑二羟基苯乙醇的制备。具有如下优点:1、本发明方法所用原料及试剂毒性更小,更加安全的同时,也更加廉价易得,并且方便存储,极大地减少了原料及运行成本;2、本发明方法反应步骤少,方便操作,更易于大规模化生产;3、本发明方法无高毒三废产生,减少了环境污染,保护了生态环境。同时,所制备的产品收率高,可达90%以上。
Description
技术领域
本发明属于化工合成技术领域,具体涉及一种制备3,4-二羟基苯乙醇的方法。
背景技术
3,4-二羟基苯乙醇,又叫羟基酪醇,分子式:C8H10O3,分子量:154.16,沸点:355.4℃;为浅黄色油状液体,应用十分广泛。一:是一款高效的抗氧化剂,应用于化妆品和保健品;二:应用于软骨组织的修复或再生;三:应用于心血管药物的合成;四:防癌,抗癌;五:有效降低吸烟对人体的危害等。随着其用途不断地扩大,市场需求量也在不断地增加。目前主要获取和合成3,4-二羟基苯乙醇的方法如下:
方法一:天然产物提取,主要从橄榄果实、橄榄叶中或者生产橄榄油的工业废水中提取,专利CN101662956A,CN1665764A,CN101624607A,CN101973853A,CN103113195A,CN101298411A,CN110526804A,CN110343031A,等对于提取技术均有公开:
该方法原料中产品含量较低,提取工艺复杂,提纯难度大,不宜于工业化大规模生产。
方法二:国际专利WO2007009590公开了以邻苯二酚为原料,先做成3,4-二羟基扁桃酸,再进行氢化反应制得3.4-二羟基苯乙酸,最后经还原反应制得到3,4-二羟基苯乙醇,具体的反应方程式如下:
该方法总收率不高。
方法三:国际专利WO2008107109公开了以2-氯-1-(3,4-二羟基)苯乙酮为原料,经一步化学反应制得3,4-二羟基苯乙醇,具体的反应方程式如下:
该方法原料不易获取。
方法四:专利CN101580460A公开了以3.4-二羟基苯甲醛为原料经苄基保护,碳链延长,还原醛基,去保护等化学反应制得3,4-二羟基苯乙醇,具体的反应方程式如下:
该方法反应步骤长,总收率低。
方法五:专利CN103664536A公开了以邻苯二酚为起始原料经羟基保护,还原,去保护等5步化学反应制得3,4-二羟基苯乙醇,具体的反应方程式如下:
该方法反应步骤长。
方法六:专利CN101891595A公开了以3.4-二羟基苯甲醛为起始原料经羟基保护,再与氮甲基苯胺乙腈反应制备3-(3.4-二苄氧苯基)-2-(甲基苯基氨基)丙烯腈,然后水解,还原,去保护等化学反应制得3,4-二羟基苯乙醇,具体的反应方程式如下:
该方法反应步骤长,总收率低50-60%。
方法七:专利CN109438189A公开了以对羟基苯乙醇为原料经醇羟基保护,硝化,还原,重氮化,水解等化学反应制得3,4-二羟基苯乙醇,具体的反应方程式如下:
该方法反应步骤长,硝化,重氮化反应废水多,原料不易得。
方法八:专利CN103038203A公开了以丁子香酚为原料经臭氧氧化,去保护等化学反应制得产品3,4-二羟基苯乙醇,具体的反应方程式如下:
该方法用到臭氧或者其他氧化不易放大生产,副产物多,纯化难度大。
方法九:专利CN108164398A,CN103420804A公开了以3,4-二羟基苯乙酸或者3,4-二羟基苯乙酸酯为起始原料,经硼氢化锂,或者四丁基硼氢化铵,或者氢化铝锂等金属还原试剂还原制得3,4-二羟基苯乙醇,具体的反应方程式如下:
该方法原料较贵,且金属还原试剂无法回收,成本高。
方法十:专利CN106866384A,公开了以3,4-二甲氧基苯乙醇为起始原料,经三氟化硼或者三氟化硼乙醚等试剂脱甲基制备3,4-二羟基苯乙醇,具体的反应方程式如下:
该方法原料较贵,不易放大生产。
发明内容
本发明的目的是提供一种制备3,4-二羟基苯乙醇的方法,采用该方法能够有效克服现有合成3,4-二羟基苯乙醇的诸多不足。
为实现上述目的,本发明采用的技术方案为:该方法包括如下步骤:
①苄氧基甲基三苯基氯化磷的制备:在惰性气体保护下,在溶剂中加入氯甲基苄基醚及三苯基磷,在一定温度、一定时间下进行反应,得到苄氧基甲基三苯基氯化磷(维蒂希试剂);
②3.4-二苄氧基苯甲醛的制备:在惰性气体保护下,在溶剂中,加入卤苄,在碱性条件下和3.4-二羟基苯甲醛反应得到3.4-二苄氧基苯甲醛;
③1,2-二苄氧基-4-(2-苄氧基乙烯基)苯的制备:在惰性气体保护下,在溶剂中,将3.4-二苄氧基苯甲醛和苄氧基甲基三苯基氯化磷在碱性条件下反应得到1,2-二苄氧基-4-(2-苄氧基乙烯基)苯;
④3,4-二羟基苯乙醇的制备:在惰性气体保护下,在溶剂中,将1,2-二苄氧基-4-(2-苄氧基乙烯基)苯在催化剂作用下加压氢化得到3,4-二羟基苯乙醇。
本发明方法各步骤采用的具体反应方程式如下:
上述步骤①②③④中所述惰性气体为氩气,氮气。
上述步骤①中所述溶剂为甲苯,二甲苯,苯,氯苯,乙酸乙酯,庚烷,1.4-二氧六环,四氢呋喃,2-甲基四氢呋喃;优选:甲苯,二甲苯,乙酸乙酯,庚烷,1.4-二氧六环;其用量为氯甲基苄基醚质量的2-50倍,优选:3-15倍。
上述步骤①中所述氯甲基苄基醚与三苯基磷的摩尔配比为1:1至1:10;优选:1:1至1:2。
上述步骤①中所述反应温度为20度至110度。
上述步骤①中所述反应时间为5-24小时。
上述步骤②中所述溶剂为无水乙醇,N,N-二甲基甲酰胺,四氢呋喃,2-甲基四氢呋喃,1.4-二氧六环;其用量为3.4-二羟基苯甲醛质量的3-12倍。
上述步骤②中所述苄卤为氯苄,溴苄;其用量为3.4-二羟基苯甲醛摩尔质量的2-15倍,优选:2-5倍。
上述步骤②中所述碱性条件所加入的碱为碳酸钾,碳素钠,碳酸氢钾,碳酸氢钠,叔丁醇钾,叔丁醇钠,甲醇钾,甲醇钠,碳酸铯,三乙胺,二异丙基乙基胺,吡啶,HMDSLi,优选:碳酸钾,碳素钠,碳酸氢钾,碳酸氢钠,叔丁醇钾,叔丁醇钠,甲醇钾,甲醇钠,碳酸铯;其用量为3.4-二羟基苯甲醛摩尔质量的2-10倍,优选:2-5倍。
上述步骤③中所述溶剂为N,N-二甲基甲酰胺,四氢呋喃,2-甲基四氢呋喃,1.4-二氧六环;其用量为3.4-二苄氧基苯甲醛质量的3-30倍。
上述步骤③中所述3.4-二苄氧基苯甲醛与苄氧基甲基三苯基氯化磷的摩尔比为1:1至1:10。
上述步骤③中所述碱性条件所加入的碱为叔丁醇钾,叔丁醇钠,甲醇钾,甲醇钠,碳酸铯,正丁基锂,叔丁基锂,二异丙基氨基锂,HMDSLi;其用量为3.4-二苄氧基苯甲醛摩尔质量的1-20倍,优选:2-5倍。
上述步骤④中所述溶剂为乙醇,甲醇,异丙醇,1.4-二氧六环,甲苯,甲酸,乙酸;其用量为1,2-二苄氧基-4-(2-苄氧基乙烯基)苯质量的3-15倍。
上述步骤④中所述催化剂为钯碳,氢氧化钯碳,铂碳;其用量为1,2-二甲氧基-4-(2-甲氧基乙烯基)苯质量的1%-200%,优选:5%-20%。
上述步骤④中所述氢化压力为20-200Psi。
本发明方法是采用全新思路而提出的一种制备3,4-二羟基苯乙醇的新方法,与现有诸多合成方法相比更加安全、高效、环保,其具有如下优点:
1、本发明方法所用原料及试剂毒性更小,更加安全的同时,也更加廉价易得,并且方便存储,极大地减少了原料及运行成本;
2、本发明方法反应步骤少,方便操作,更易于大规模化生产;
3、本发明方法无高毒三废产生,减少了环境污染,保护了生态环境。同时,所制备的产品收率高,可达90%以上。
具体实施方式
实施例1:
①苄氧基甲基三苯基氯化磷的制备:氮气保护下,向反应瓶中加入甲苯2升,三苯基磷314.7克,氯甲基苄基醚156.6克,加完后升温至100度反应20小时,降至室温,过滤,收集滤饼,烘干得苄氧基甲基三苯基氯化磷398g,95%收率。
②3.4-二苄氧基苯甲醛的制备:氮气保护下,向反应瓶中加入无水乙醇200毫升,3.4-二羟基苯甲醛50克,碳酸钾125.08克,降温至0-5度,慢慢滴加溴苄136.21克,滴加完毕后升温至60度反应8小时,减压浓缩回收溶剂,剩余物倒入冰水300克中,过滤并用100毫升水洗滤饼,烘干,得3.4-二苄氧基苯甲醛110克,96%收率。
③化合物1,2-二苄氧基-4-(2-苄氧基乙烯基)苯的制备:氩气保护下,向反应瓶中加入苄氧基甲基三苯基氯化磷100克,N,N-二甲基甲酰胺800毫升,叔丁醇钾53.57克,搅拌反应30分钟,加入3.4-二苄氧基苯甲醛69.10克,加毕后升温至60度反应15小时;将反应液倒入水3升中,乙酸乙酯1升*2萃取反应液,有机相合并,300毫升5%氯化钠水溶液洗涤两次,有机相干燥,旋干溶剂,柱层析纯化得化合物1,2-二苄氧基-4-(2-苄氧基乙烯基)苯82.5克,90%收率。
④3,4-二羟基苯乙醇的制备:将化合物1,2-二苄氧基-4-(2-苄氧基乙烯基)苯50克加入氢化反应瓶内,加入甲醇300毫升,氢氧化钯碳催化剂6克。氮气置换三次,通氢气至50psi,升温至70度反应12小时,降温至20度,过滤回收催化剂,母液浓缩干得3,4-二羟基苯乙醇17.3克,95%收率。
实施例2:
①苄氧基甲基三苯基氯化磷的制备:氮气保护下,向反应瓶中加入二甲苯2升,三苯基磷314.7克,氯甲基苄基醚156.6克,加完后升温至100度反应20小时,降至室温,过滤,收集滤饼,烘干得苄氧基甲基三苯基氯化磷390克,93%收率。
②3.4-二苄氧基苯甲醛的制备:氩气保护下,向反应瓶中加入N,N-二甲基甲酰胺200毫升,3.4-二羟基苯甲醛50克,碳酸钾125.08克,降温至0-5度,慢慢滴加氯苄136.21克,滴加完毕后升温至100度反应15小时,减压浓缩回收溶剂,剩余物倒入冰水300克中,过滤并用100毫升水洗滤饼,烘干,得3.4-二苄氧基苯甲醛105克,92%收率。
③化合物1,2-二苄氧基-4-(2-苄氧基乙烯基)苯的制备:氩气保护下,向反应瓶中加入苄氧基甲基三苯基氯化磷100克,四氢呋喃800毫升,降温至零下35度,慢慢滴加2.5M正丁基锂己烷溶液122毫升,滴加完毕后于零下30度搅拌反应30分钟,慢慢滴加入3.4-二苄氧基苯甲醛69.10克的四氢呋喃溶液200毫升,加毕后慢慢回温至25度反应10小时;向反应液中滴加10%氯化铵水溶液300毫升,乙酸乙酯2升*2萃取反应液,有机相合并,300毫升5%氯化钠水溶液洗涤两次,有机相干燥,旋干溶剂,柱层析纯化得1,2-二苄氧基-4-(2-苄氧基乙烯基)苯82.5克,90%收率。
④3,4-二羟基苯乙醇的制备:将化合物1,2-二苄氧基-4-(2-苄氧基乙烯基)苯50克加入氢化反应瓶内,加入乙醇300毫升,钯碳催化剂7克。氮气置换三次,通氢气至60psi,升温至70度反应10小时,降至室温,过滤回收催化剂,母液浓缩干得3,4-二羟基苯乙醇16.4克,90%收率。
上述虽然对本发明的具体实施方式进行了描述,但并非对本发明保护范围的限制,在本发明的技术方案的基础上,本领域技术人员不需要付出创造性劳动即可做出的各种修改或者变形仍在本发明的保护范围以内。
Claims (10)
1.一种制备3,4-二羟基苯乙醇的方法,该方法包括如下步骤:
①苄氧基甲基三苯基氯化磷的制备:在惰性气体保护下,在溶剂中加入氯甲基苄基醚及三苯基磷,在一定温度、一定时间下进行反应,得到苄氧基甲基三苯基氯化磷;
②3.4-二苄氧基苯甲醛的制备:在惰性气体保护下,在溶剂中,加入卤苄,在碱性条件下和3.4-二羟基苯甲醛反应得到3.4-二苄氧基苯甲醛;
③1,2-二苄氧基-4-(2-苄氧基乙烯基)苯的制备:在惰性气体保护下,在溶剂中,将3.4-二苄氧基苯甲醛和苄氧基甲基三苯基氯化磷在碱性条件下反应得到1,2-二苄氧基-4-(2-苄氧基乙烯基)苯;
④3,4-二羟基苯乙醇的制备:在惰性气体保护下,在溶剂中,将1,2-二苄氧基-4-(2-苄氧基乙烯基)苯在催化剂作用下加压氢化得到3,4-二羟基苯乙醇。
2.根据权利要求1所述的一种制备3,4-二羟基苯乙醇的方法,其特征是:步骤①中所述氯甲基苄基醚与三苯基磷的摩尔配比为1:1至1:10。
3.根据权利要求1或2所述的一种制备3,4-二羟基苯乙醇的方法,其特征是:步骤①中所述反应温度为20度至110度。
4.根据权利要求1或2所述的一种制备3,4-二羟基苯乙醇的方法,其特征是:步骤①中所述反应时间为5-24小时。
5.根据权利要求1或2所述的一种制备3,4-二羟基苯乙醇的方法,其特征是:步骤②中所述苄卤为氯苄,溴苄;其用量为3.4-二羟基苯甲醛摩尔质量的2-15倍。
6.根据权利要求1或2所述的一种制备3,4-二羟基苯乙醇的方法,其特征是:步骤②中所述碱性条件所加入的碱为碳酸钾,碳素钠,碳酸氢钾,碳酸氢钠,叔丁醇钾,叔丁醇钠,甲醇钾,甲醇钠,碳酸铯,三乙胺,二异丙基乙基胺,吡啶,HMDSLi;其用量为3.4-二羟基苯甲醛摩尔质量的2-10倍。
7.根据权利要求1或2所述的一种制备3,4-二羟基苯乙醇的方法,其特征是:步骤③中所述3.4-二苄氧基苯甲醛与苄氧基甲基三苯基氯化磷的摩尔比为1:1至1:10。
8.根据权利要求1或2所述的一种制备3,4-二羟基苯乙醇的方法,其特征是:步骤③中所述碱性条件所加入的碱为叔丁醇钾,叔丁醇钠,甲醇钾,甲醇钠,碳酸铯,正丁基锂,叔丁基锂,二异丙基氨基锂,HMDSLi;其用量为3.4-二苄氧基苯甲醛摩尔质量的1-20倍。
9.根据权利要求1或2所述的一种制备3,4-二羟基苯乙醇的方法,其特征是:步骤④中所述催化剂为钯碳,氢氧化钯碳,铂碳;其用量为1,2-二甲氧基-4-(2-甲氧基乙烯基)苯质量的1%-200%。
10.根据权利要求1或2所述的一种制备3,4-二羟基苯乙醇的方法,其特征是:步骤④中所述氢化压力为20-200Psi。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010069618.9A CN111233631A (zh) | 2020-01-21 | 2020-01-21 | 一种制备3,4-二羟基苯乙醇的方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010069618.9A CN111233631A (zh) | 2020-01-21 | 2020-01-21 | 一种制备3,4-二羟基苯乙醇的方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN111233631A true CN111233631A (zh) | 2020-06-05 |
Family
ID=70867559
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202010069618.9A Pending CN111233631A (zh) | 2020-01-21 | 2020-01-21 | 一种制备3,4-二羟基苯乙醇的方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN111233631A (zh) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007009590A1 (en) * | 2005-07-18 | 2007-01-25 | Dsm Ip Assets B.V. | Process for the preparation of phenolic compounds |
CN101580460A (zh) * | 2009-05-26 | 2009-11-18 | 台州市知青化工有限公司 | 一种3,4-二羟基苯乙醇的合成方法 |
CN106413715A (zh) * | 2014-04-22 | 2017-02-15 | 林伯士艾瑞斯公司 | Irak抑制剂和其用途 |
-
2020
- 2020-01-21 CN CN202010069618.9A patent/CN111233631A/zh active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007009590A1 (en) * | 2005-07-18 | 2007-01-25 | Dsm Ip Assets B.V. | Process for the preparation of phenolic compounds |
CN101580460A (zh) * | 2009-05-26 | 2009-11-18 | 台州市知青化工有限公司 | 一种3,4-二羟基苯乙醇的合成方法 |
CN106413715A (zh) * | 2014-04-22 | 2017-02-15 | 林伯士艾瑞斯公司 | Irak抑制剂和其用途 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101522656B (zh) | 制备奈必洛尔的方法 | |
CN103172504B (zh) | 2,7-二甲基-2,4,6-辛三烯-1,8-二醛的合成方法 | |
CN103467287B (zh) | 一种4-乙酰氧基-2-甲基-2-丁烯醛的制备方法 | |
CN112047797B (zh) | 一种制备α-烷基取代酮类化合物的方法 | |
CN104370755A (zh) | 一种光学活性的3-氨基丁醇和3-氨基丁酸的制备方法 | |
CN100554231C (zh) | 制备乙二醇丁醚的方法 | |
CN102766190B (zh) | 雷公藤内酯醇中间体不对称合成方法 | |
CN111233631A (zh) | 一种制备3,4-二羟基苯乙醇的方法 | |
CN110903169A (zh) | 一种制备4-丁基间苯二酚的方法 | |
CN105294400B (zh) | 一种Petrosiol E全合成的方法 | |
CN101219938B (zh) | 愈创木酚的合成方法 | |
CN102775311B (zh) | 一种水杨酸异辛酯的制备方法 | |
CN103038203A (zh) | 用于制备羟基酪醇的方法 | |
CN111454114B (zh) | 一种用13c2-香叶醇合成高纯度13c2-月桂烯的方法 | |
CN108752217A (zh) | 一种度鲁特韦关键中间体2,4-二氟苄胺的合成新方法 | |
CN1295201C (zh) | 由含羰基的酮或醛类化合物制备α,β-不饱和醇的方法 | |
CN111747876A (zh) | 一种氧化角黄素制备虾青素的方法 | |
CN111018928A (zh) | 一种天麻素半水合物的合成方法及其应用 | |
CN104230880A (zh) | 2-((4r, 6r)-6-氨乙基-2,2-二甲基-1,3-二氧六环-4-基)乙酸酯的简便制备方法 | |
CN108840788B (zh) | 一种白藜芦醇的制备方法 | |
CN113666810B (zh) | 一种羟基香茅醛的绿色合成方法 | |
CN112441997B (zh) | 一种合成α-(2-四氢呋喃基)-苯乙酮类化合物的方法 | |
CN110128246A (zh) | 一种羟基酪醇的制备方法 | |
CN114478203B (zh) | 一种用于聚醚起始剂的乙烯基低碳醇的制备方法 | |
CN115246772B (zh) | 一种异丁酰乙酸甲酯的制备方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200605 |
|
WD01 | Invention patent application deemed withdrawn after publication |