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CN100494149C - A kind of green synthetic method of α, β-unsaturated ketone or aryl ketone - Google Patents

A kind of green synthetic method of α, β-unsaturated ketone or aryl ketone Download PDF

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CN100494149C
CN100494149C CNB2006100536353A CN200610053635A CN100494149C CN 100494149 C CN100494149 C CN 100494149C CN B2006100536353 A CNB2006100536353 A CN B2006100536353A CN 200610053635 A CN200610053635 A CN 200610053635A CN 100494149 C CN100494149 C CN 100494149C
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alpha
arone
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ketone
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CN1970523A (en
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苏为科
金灿
刘建刚
闻光东
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Down Biological Science Technologies Co Ltd Of Sand In Hangzhou
Zhejiang University of Technology ZJUT
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Down Biological Science Technologies Co Ltd Of Sand In Hangzhou
Zhejiang University of Technology ZJUT
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Abstract

The invention discloses a green synthesizing method of alpha, beta-unsaturated ketone or aromatic ketone, which is characterized by the following: adopting relative unsaturated hydrocarbons or aromatic hydrocarbons as raw material; setting imide as catalyst; making azobisisobutyronitrile (AIBN) or benzoyl peroxide (BPO) as initiator; oxidizing in the organic solvent; dehydrating through dehydrant; separating and purifying to obtain the alpha, beta-unsaturated ketone; improving reacting receiving rate; reducing manufacturing cost; possessing mild reacting condition; using little catalyst; avoiding pollution.

Description

The green synthesis method of a kind of alpha, beta-unsaturated ketone or arone
(1) technical field
The present invention relates to the green synthesis method of a kind of alpha, beta-unsaturated ketone or arone, especially a kind of green chemical synthesis method for preparing alpha, beta-unsaturated ketone or arone with air or oxygen-rich air or oxygen as cleaning oxidizer.These series product are widely used in the synthetic of medicine, agricultural chemicals and dyestuff, have very high practical value and economic benefit.
(2) background technology
Before the present invention made, the synthetic of prior art alpha, beta-unsaturated ketone or arone was to prepare with traditional oxygenants such as high price chromic salts, chromium trioxide, periodides.As J.Org.Chem.1969,3587, propose with 25 normal CrO 3/ pyridine obtains target product as oxygenant, yield about 70%; Syn.Commun.1987,1227, propose to finish oxidizing reaction to allylic, yield about 80% as oxygenant with 25 normal PCC (Pyridinium chlorochromate on silica gel).
Traditional oxygenants such as high price chromic salts, chromium trioxide, periodide can improve reaction efficiency under the condition of gentleness, existing application widely in organic synthesis, yet the shortcoming of this production technique is that consumptions such as oxygenant high price chromic salts, chromium trioxide, periodide are big, because traditional mostly oxygenant need excessively greatly just can be finished reaction, what have then costs an arm and a leg, and is not suitable for large-scale industrial production.Most importantly there is serious pollution hidden trouble in above-mentioned oxygenant, and industrial chromium-containing waste water is the arch-criminal of environmental pollution, and aftertreatment is very difficult.Therefore, though traditional oxygenant has been widely used in multiple reaction, they also exist such as above problem needs to solve.So seeking a kind of method of effectively holding concurrently environmental protection is the task of top priority.
(3) summary of the invention
For solving α in the prior art, the deficiency that the preparation catalyst levels of alpha, beta-unsaturated ketone or arone is big, cost is high, aftertreatment is difficult and easily pollute, the invention provides that a kind of technology is reasonable, reaction yield is high, catalyst levels can make things convenient for again less that recovery set is low with, production cost, the alpha, beta-unsaturated ketone of clean environment firendly or the green chemical synthesis method of arone.
For reaching goal of the invention the technical solution used in the present invention be:
A kind of α, the green synthesis method of alpha, beta-unsaturated ketone or arone, described method is to be raw material with corresponding unsaturated hydrocarbons or aromatic hydrocarbons, with the imide is catalyzer, with azo-bis-isobutyl cyanide (AIBN) or benzoyl peroxide (BPO) is initiator, carries out oxidizing reaction with oxygen in organic solvent, dewaters through dewatering agent, separation and purification obtains described alpha, beta-unsaturated ketone; Described corresponding unsaturated hydrocarbons or aromatic hydrocarbons are meant the precursor of described alpha, beta-unsaturated ketone or arone, and the Sauerstoffatom that is about on the ketone group of described alpha, beta-unsaturated ketone or arone is reduced to 2 resulting unsaturated hydrocarbons of hydrogen atom or aromatic hydrocarbons;
Described oxygen comes from air or oxygen-rich air or pure oxygen;
Described imide is one of following: 1. N-hydroxyl fourth dicarboximide 2. N-hydroxyl maleic dicarboximide
Figure C200610053635D00072
3. N-hydroxyphthalimide
Figure C200610053635D00073
4. N-hydroxyl-2, the 3-naphthalimide
Figure C200610053635D00074
Described organic solvent is one of following or the mixture of two or more arbitrary proportion wherein: 1. contain the halohydrocarbon of 1~4 carbon atom, 2. contain the ester of 1~7 carbon atom, 3. contain the ketone of 3~10 carbon atoms, 4. contain the ether of 2~6 carbon atoms, 5. carbonatoms is 5~6 stable hydrocarbon;
Described dewatering agent is the mixture of ferrous sulfate and pyridine or triethylamine.
All alpha, beta-unsaturated ketones or arone all can prepare as stated above, and described alpha, beta-unsaturated ketone is chain or the ring structure that contains the C=C-C=O key; Described arone is aryl ketones or the heterocyclic ketone that contains the C=C-C=O key, and described heterocycle is for containing O or N or S five-membered ring.
Described unsaturated hydrocarbons or aromatic hydrocarbons structural formula are one of following formula:
Figure C200610053635D00081
Above-mentioned unsaturated hydrocarbons or aromatic hydrocarbons correspondence obtain alpha, beta-unsaturated ketone or the arone structural formula is as follows:
Figure C200610053635D00082
R in the formula 1For hydrogen or contain the alkyl of 1~6 carbon atom or contain the acyl group of 2~4 carbon atoms or contain the benzoyl or the benzenesulfonyl of 6~8 carbon atoms or contain the silylation of 1~6 carbon atom;
R 2For hydrogen or contain the alkyl or alkenyl of 1~10 carbon atom;
R 3Be the alkyl of the straight or branched that contains 1~10 carbon atom, described alkyl head and the tail link to each other with C=C-C=O key two ends respectively to constitute and encircle;
R 4, R 5Be respectively hydrogen or contain the alkyl of 1~6 carbon atom;
R 6, R 7Independent separately is hydrogen or alkyl or the phenyl that contains 1~6 carbon atom;
Y is S or O or NH or NCH 3
Described organic solvent is one of following or two or more mixture wherein: methylene dichloride, trichloromethane, tetracol phenixin, 1, the 1-ethylene dichloride, 1, the 2-ethylene dichloride, 1,1, the 1-trichloroethane, 1,1, the 2-trichloroethane, methyl acetate, ethyl acetate, propyl acetate, butylacetate, isopropyl acetate, isobutyl acetate, pentyl acetate, Isoamyl Acetate FCC, methyl propionate, ethyl propionate, propyl propionate, butyl propionate, amyl propionate, acetone, butanone, cyclopentanone, pimelinketone, methyl propyl ketone, ether, propyl ether, isopropyl ether, butyl ether, sherwood oil, dithiocarbonic anhydride, Nitromethane 99Min., oil of mirbane.
Described organic solvent also can be the sherwood oil of 30~120 ℃ of boiling ranges.Sherwood oil is an oils, mainly is made up of pentane and hexane.Available platformate raffinate or straight-run spirit make through fractionation, hydrogenation or additive method.
Preferably, described organic solvent is one of following or two or more mixture wherein: 1. ethyl acetate, 2. butanone, 3. acetone, 4. ether, 5. sherwood oil, 6. tetrahydrofuran (THF), 7. 1,1-ethylene dichloride, 8. 1,2-ethylene dichloride.
The ratio of described unsaturated hydrocarbons, catalyzer, oxygen amount of substance is 1:0.1~4.0:1.0~1000, and described organic solvent quality is 1~100 times of catalyst quality.
Preferably, the ratio of described unsaturated hydrocarbons, catalyzer, oxygen amount of substance is 1:0.2~0.5:1.0~10.0, and described organic solvent quality is 10~15 times of catalyst quality.
Described oxidation reaction condition is 20~150 ℃ and reacted 1~24 hour down.
Concrete, described method is as follows:
(1) ratio with amount of substance is unsaturated hydrocarbons or the aromatic hydrocarbons and the catalyzer of 1:0.2~0.5, and quality is the initiator azo-bis-isobutyl cyanide of 0.01~0.5 times of catalyst quality, add quality and be in the mixed solvent of the ethyl acetate of 10~15 times of catalyst qualities and butanone volume ratio 1:1, be warmed up to 70~100 ℃, continue bubbling air, reacted 12~18 hours;
(2) reaction solution is cooled to 0 ℃, filtering recovering catalyst, add quality respectively do for oneself 0.1~1 times pyridine and ferrous sulfate of unsaturated hydrocarbons quality, be warming up to 70~100 ℃, stirred 24 hours, filtrate is washed with dilute hydrochloric acid, boil off solvent, through distillation or recrystallization, promptly get described alpha, beta-unsaturated ketone again.
Recyclable the applying mechanically of catalyzer that the present invention is used, recovery method is to be cooled to below 0 ℃ reacting the solution that finishes gained, separate out catalyzer, filtering and washing, get filter cake and reclaim catalyzer, the rate of recovery can reach 90~95%, and the recovery catalyzer need not further purification and can be directly used in the next round reaction.
Beneficial effect of the present invention is embodied in: 1. reaction yield height (generally more than 80%), production cost are low; 2. have operational path advanced person, reaction conditions gentleness; 3. few and recyclable the applying mechanically of catalyst levels; 4. cut-out source of pollution have been prevented the pollution to environment from the source, environmentally friendly.
(4) embodiment
The present invention is described further below in conjunction with specific embodiment, but protection scope of the present invention is not limited in this:
Embodiment 1:
In thermometer and churned mechanically 2500ml four-hole bottle are housed, add ditan 168g (1mol), N-maloyl imines 60g, azo-bis-isobutyl cyanide (AIBN, 0.5g), with dissolving of 1800ml ethyl acetate/butanone (V/V=1:1) mixed solvent and stirring, be heated to 70 ℃, bubbling air V=1.5ml/min.Keep temperature of reaction and stirred 12 hours.Be cooled to below 0 ℃, and fully stir 30min, leave standstill 10min then, filter, get filter cake and reclaim catalyzer 55g.Filtrate is transferred to the 2500ml there-necked flask, adds triethylamine 10ml, and ferrous sulfate 15g is heated to 70 ℃ and stirred 24 hours.Cool to room temperature adds 5% dilute hydrochloric acid, makes pH value≤5, separatory, upper strata clear solution washing back concentrates, faint yellow solid, use 80% ethyl alcohol recrystallization, get pure product 166g, yield 90.5%, 48 ℃ of fusing points.
Embodiment 2:
In thermometer and churned mechanically 2500ml four-hole bottle are housed, add ditan 168g (1mol), N-hydroxyl maleimide 60g, azo-bis-isobutyl cyanide (AIBN, 0.5g), with dissolving of 1800ml ethyl acetate/butanone (V/V=1:1) mixed solvent and stirring, be heated to 70 ℃, bubbling air V=1.5ml/min.Keep temperature of reaction and stirred 12 hours.Be cooled to below 0 ℃, and fully stir 30min, leave standstill 10min then, filter, get filter cake and reclaim catalyzer 52.5g.Filtrate is transferred to the 2500ml there-necked flask, adds triethylamine 10ml, and ferrous sulfate 15g is heated to 70 ℃ and stirred 24 hours.Cool to room temperature adds 5% dilute hydrochloric acid, makes pH value≤5, separatory, upper strata clear solution washing back concentrates, faint yellow solid, use 80% ethyl alcohol recrystallization, get pure product 155g, yield 85%, 47 ℃ of fusing points.
Embodiment 3:
In thermometer and churned mechanically 2500ml four-hole bottle are housed, add ditan 168g (1mol), N-hydroxyphthalimide 85g, azo-bis-isobutyl cyanide (AIBN, 0.5g), with dissolving of 1800ml ethyl acetate/butanone (V/V=1:1) mixed solvent and stirring, be heated to 70 ℃, bubbling air V=1.5ml/min.Keep temperature of reaction and stirred 12 hours.Be cooled to below 0 ℃, and fully stir 30min, leave standstill 10min then, filter, get filter cake and reclaim catalyzer 82.5g.Filtrate is transferred to the 2500ml there-necked flask, adds triethylamine 10ml, and ferrous sulfate 15g is heated to 70 ℃ and stirred 24 hours.Cool to room temperature adds 5% dilute hydrochloric acid, makes pH value≤5, separatory, upper strata clear solution washing back concentrates, faint yellow solid, use 80% ethyl alcohol recrystallization, get pure product 146g, yield 81%, 49 ℃ of fusing points.
Embodiment 4:
In thermometer and churned mechanically 2500ml four-hole bottle are housed, add tetrahydrobenzene 82g (1mol), N-hydroxyl fourth dicarboximide 60g, azo-bis-isobutyl cyanide (AIBN, 0.5g), with dissolving of 1800ml ethyl acetate/butanone (V/V=1:1) mixed solvent and stirring, be heated to 70 ℃, bubbling air V=1.5ml/min.Keep temperature of reaction and stirred 12 hours.Be cooled to below 0 ℃, and fully stir 30min, leave standstill 10min then, filter, get filter cake and reclaim catalyzer 82.5g.Filtrate is transferred to the 2500ml there-necked flask, adds triethylamine 10ml, and ferrous sulfate 15g is heated to 70 ℃ and stirred 24 hours.Cool to room temperature adds 5% dilute hydrochloric acid, makes pH value≤5, separatory, upper strata clear solution washing back concentrates, weak yellow liquid, distill pure product 66g, yield 81%.
Embodiment 5:
Reaction solvent is changed to ethylene dichloride/butanone (V/V=1:1), and temperature of reaction is 80 ℃, and other is operated with example 1, yield 89%, 48 ℃ of fusing points, catalyst recovery yield 90%.
Embodiment 6:
Reaction solvent is changed to tetrahydrofuran (THF)/butanone (V/V=1:1), and temperature of reaction is 60 ℃, and other is operated with embodiment 1, yield 82%, 47.5 ℃ of fusing points, catalyst recovery yield 87%.
Embodiment 7:
Reaction solvent is changed to ethylene dichloride/ethyl acetate (V/V=1:1), and temperature of reaction is 65 ℃, and other is operated with embodiment 1, yield 80%, 48 ℃ of fusing points, catalyst recovery yield 88%.
Embodiment 8:
Reaction solvent is changed to ethylene dichloride/sherwood oil (V/V=1:1), and temperature of reaction is 90 ℃, and other is operated with embodiment 1, yield 86%, 49 ℃ of fusing points, catalyst recovery yield 95%.
Embodiment 9:
Catalyst n-maloyl imines consumption is 12g, and other is operated with embodiment 1, yield 75%, 46 ℃ of fusing points, catalyst recovery yield 93%.
Embodiment 10:
Catalyst n-maloyl imines consumption is 120g, and other is operated with embodiment 1, yield 90%, 48 ℃ of fusing points, catalyst recovery yield 96%.
Embodiment 11:
Catalyst n-maloyl imines consumption is 240g, and other is operated with embodiment 1, yield 91%, 48 ℃ of fusing points, catalyst recovery yield 94%.
Embodiment 12:
Oxidation time becomes 2h, and other is operated with embodiment 1, yield 70%, 45 ℃ of fusing points, catalyst recovery yield 92%.
Embodiment 13:
Oxidation time becomes 8h, and other is operated with embodiment 1, yield 75%, 47 ℃ of fusing points, catalyst recovery yield 90%.
Embodiment 14:
Oxidation time becomes 24h, and other is operated with embodiment 1, yield 90%, 49 ℃ of fusing points, catalyst recovery yield 90%.
Embodiment 15:
Initiator is benzoyl peroxide (BPO), and other is operated with embodiment 1, yield 90%, 49 ℃ of fusing points, catalyst recovery yield 93%.
Embodiment 16:
Bubbling air V=5ml/min, other is operated with embodiment 1, yield 92%, 48 ℃ of fusing points, catalyst recovery yield 90%.
Embodiment 17:
Bubbling air V=10ml/min, other is operated with embodiment 1, yield 93%, 48.5 ℃ of fusing points, catalyst recovery yield 91%.
Embodiment 18:
The ferrous sulfate consumption is 30g, and other is operated with embodiment 1, yield 94%, 48 ℃ of fusing points, catalyst recovery yield 93%.
Embodiment 19:
The ferrous sulfate consumption is 90g, and other is operated with embodiment 1, yield 95%, 49 ℃ of fusing points, catalyst recovery yield 90%.
Embodiment 20~37:
In thermometer and churned mechanically 2500ml four-hole bottle are housed, add alkene or aromatic hydrocarbons 1mol, N-maloyl imines 60g, azo-bis-isobutyl cyanide (AIBN, 0.5g), with dissolving of 1800ml ethyl acetate/butanone (V/V=1:1) mixed solvent and stirring, be heated to 70 ℃, bubbling air V=1.5ml/min.Keep temperature of reaction and stirred 12 hours.Be cooled to below 0 ℃, and fully stir 30min, leave standstill 10min then, filter, get filter cake and reclaim catalyzer.Filtrate is transferred to the 2500ml there-necked flask, adds triethylamine 10ml, and ferrous sulfate 15g is heated to 70 ℃ and stirred 24 hours.Cool to room temperature adds 5% dilute hydrochloric acid, makes pH value≤5, separatory, upper strata clear solution washing back concentrates, faint yellow solid, with 80% ethyl alcohol recrystallization or rectifying, get white or transparent pure product, the results are shown in Table 1.
Table 1: example 20~37 experimental results
Figure C200610053635D00151

Claims (8)

1. α, the green synthesis method of alpha, beta-unsaturated ketone or arone, it is characterized in that described method is is raw material with corresponding unsaturated hydrocarbons or aromatic hydrocarbons, with the imide is catalyzer, with azo-bis-isobutyl cyanide or benzoyl peroxide is initiator, carries out oxidizing reaction with oxygen in organic solvent, dewaters through dewatering agent, separation and purification obtains described alpha, beta-unsaturated ketone or arone; Described oxygen comes from air or oxygen-rich air or pure oxygen;
Described imide is one of following: 1. N-hydroxyl fourth dicarboximide, 2. N-hydroxyl maleic dicarboximide, 3. N-hydroxyphthalimide, 4. N-hydroxyl-2,3-naphthalimide;
Described organic solvent is one of following or the mixture of two or more arbitrary proportions wherein: 1. contain the halohydrocarbon of 1~4 carbon atom, 2. contain the ester of 1~7 carbon atom, do not comprise the situation of having only 1 carbon atom, 3. contain the ketone of 3~10 carbon atoms, 4. contain the ether of 2~6 carbon atoms, 5. carbonatoms is 5~6 stable hydrocarbon;
Described dewatering agent is the mixture of ferrous sulfate and pyridine or triethylamine;
Described alpha, beta-unsaturated ketone or arone structural formula are one of following formula:
Figure C200610053635C00021
Corresponding unsaturated hydrocarbons or aromatic hydrocarbons structural formula are one of following formula:
Figure C200610053635C00031
R in the formula 1For hydrogen or contain the alkyl of 1~6 carbon atom or contain acyl group or the benzoyl or the benzenesulfonyl of 2~4 carbon atoms or contain the silylation of 1~6 carbon atom;
R 2For hydrogen or contain the alkyl of 1~10 carbon atom;
R 3For containing the straight chained alkyl of 1~10 carbon atom;
R 5For hydrogen or contain the alkyl of 1~6 carbon atom;
R 6, R 7Independent separately is hydrogen or alkyl or the phenyl that contains 1~6 carbon atom.
2. α as claimed in claim 1, the green synthesis method of alpha, beta-unsaturated ketone or arone, it is characterized in that described organic solvent is one of following or wherein two or more mixture: methylene dichloride, trichloromethane, tetracol phenixin, 1, the 1-ethylene dichloride, 1, the 2-ethylene dichloride, 1,1, the 1-trichloroethane, 1,1, the 2-trichloroethane, methyl acetate, ethyl acetate, propyl acetate, butylacetate, isopropyl acetate, isobutyl acetate, pentyl acetate, Isoamyl Acetate FCC, methyl propionate, ethyl propionate, propyl propionate, butyl propionate, amyl propionate, acetone, butanone, cyclopentanone, pimelinketone, methyl propyl ketone, ether, propyl ether, isopropyl ether, sherwood oil.
3. the green synthesis method of alpha, beta-unsaturated ketone as claimed in claim 1 or arone is characterized in that described organic solvent is the sherwood oil of 30~120 ℃ of boiling ranges.
4. α as claimed in claim 1, the green synthesis method of alpha, beta-unsaturated ketone or arone, it is characterized in that described organic solvent is one of following or wherein two or more mixture: 1. ethyl acetate, 2. butanone, 3. acetone, 4. ether, 5. sherwood oil, 6. tetrahydrofuran (THF), 7. 1,1-ethylene dichloride, 8. 1, the 2-ethylene dichloride.
5. α as claimed in claim 1, the green synthesis method of alpha, beta-unsaturated ketone or arone, the ratio that it is characterized in that described unsaturated hydrocarbons, catalyzer, oxygen amount of substance is 1:0.1~4.0:1.0~1000, and described organic solvent quality is 1~100 times of catalyst quality.
6. α as claimed in claim 5, the green synthesis method of alpha, beta-unsaturated ketone or arone, the ratio that it is characterized in that described unsaturated hydrocarbons, catalyzer, oxygen amount of substance is 1:0.2~0.5:1.0~10.0, and described organic solvent quality is 10~15 times of catalyst quality.
7. as the green synthesis method of described alpha, beta-unsaturated ketone of one of claim 1~3 or arone, it is characterized in that described oxidation reaction condition is 20~150 ℃ and reacted 1~24 hour down.
8. the green synthesis method of alpha, beta-unsaturated ketone as claimed in claim 1 or arone is characterized in that described method is as follows:
(1) ratio with amount of substance is unsaturated hydrocarbons or the aromatic hydrocarbons and the catalyzer of 1:0.2~0.5, and quality is the initiator azo-bis-isobutyl cyanide of 0.01~0.5 times of catalyst quality, add quality and be in the mixed solvent of the ethyl acetate of 10~15 times of catalyst qualities and butanone volume ratio 1:1, be warmed up to 70~100 ℃, continue bubbling air, reacted 12~18 hours;
(2) reaction solution is cooled to 0 ℃, filtering recovering catalyst, add quality respectively do for oneself 0.1~1 times pyridine and ferrous sulfate of unsaturated hydrocarbons or aromatic hydrocarbons quality, be warming up to 70~100 ℃, stirred 24 hours, filtrate is washed with dilute hydrochloric acid, boil off solvent, through distillation or recrystallization, promptly get described alpha, beta-unsaturated ketone or arone again.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021121239A1 (en) 2019-12-19 2021-06-24 湖南科瑞生物制药股份有限公司 Method for preparing cholesterol, derivative thereof, and analog thereof

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101544526B (en) * 2008-03-25 2013-03-27 中国人民大学 Method of activating alpha position C-H key of ether compound and application thereof
CN102757376A (en) * 2011-12-13 2012-10-31 大连理工大学 Preparation method of b-heterocyclic ketone compound
CN105669813B (en) * 2015-12-31 2017-11-07 厦门金达威维生素有限公司 A kind of synthetic method of the ketone cholesterol acetate of intermediates of vitamin D_3 7
CN107936077A (en) * 2016-10-12 2018-04-20 浙江天新药业有限公司 A kind of preparation method of 7 oxo cholesterol acetate
CN107903280B (en) * 2017-09-22 2020-06-16 华东师范大学 Synthesis method of acyl aryl boric acid compound
WO2021035382A1 (en) * 2019-08-23 2021-03-04 辽宁凯莱英医药化学有限公司 Method forcontinuous synthesis of 2-cyclopentene-1-one
CN110407678A (en) * 2019-08-23 2019-11-05 辽宁凯莱英医药化学有限公司 2- cyclopentene-1-one is continuously synthesizing to method
CN111302925B (en) * 2020-03-16 2023-05-30 万华化学集团股份有限公司 Method for preparing cyclic alpha, beta-unsaturated ketone

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Allylic Oxidation of Olefins with Chromium Trioxide-pyridineComplex. WILLIAM G.DAUBE, et al.The Journal of Organic Chemistry,Vol.34 No.11. 1969 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021121239A1 (en) 2019-12-19 2021-06-24 湖南科瑞生物制药股份有限公司 Method for preparing cholesterol, derivative thereof, and analog thereof

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