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Dayang Chem (Hangzhou) Co.,Ltd.

DayangChem exported this product to many countries and regions at best price. If you are looking for the material's manufacturer or supplier in China, DayangChem is your best choice. Pls contact with us freely for getting detailed product spe

Ethyl (S)-(+)-3-hydroxybutyrate

Cas:56816-01-4

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

inquiry

Simagchem Corporation

Welcome to Simagchem, your partner in China as a premier supply of bulk specialty chemicals for industry and life science. We introduce experienced quality product and exceptional JIT service with instant market intelligence in China to benefit our

High quality Ethyl (S)-(+)-3-Hydroxybutyrate supplier in China

Cas:56816-01-4

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

inquiry

Henan Allgreen Chemical Co.,Ltd

high quality Appearance:White or off-white Solid Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea Port:shanghai

Ethyl (S)-(+)-3-Hydroxybutyrate

Cas:56816-01-4

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

inquiry

Ality Chemical Corporation

The above product is Ality Chemical's strong item with best price, good quality and fast supply. Ality Chemical has been focusing on the research and production of this field for over 14 years. At the same time, we are always committed to providi

Factory Supply Ethyl (S)-(+)-3-Hydroxybutyrate

Cas:56816-01-4

Min.Order:1

Negotiable

Type:Other

inquiry

Chemwill Asia Co., Ltd.

Our main production base is located in Xuzhou industry park. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place.Our R&D team masters core technology for process-design of target building block

(S)-(+)-3-Hydroxybutyric acid ethyl ester

Cas:56816-01-4

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

inquiry

Henan Tianfu Chemical Co., Ltd.

Our advantage:Our company was built in 2009 with an ISO certificate.In the past 5 years, we have grown up as a famous fine chemicals supplier in China and we had established stable business relationships with Samsung,LG,Merck,Thermo Fisher Scient

TIANFU-CHEM Ethyl (S)-3-hydroxybutyrate

Cas:56816-01-4

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Zhuozhou Wenxi import and Export Co., Ltd

WITH US,YOUR MONEY IN SAFE,YOUR BUSINESS IN SAFE 1)Quick Response Within 12 hours; 2)Quality Guarantee: All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France et

Manufacturer supply CAS 56816-01-4 with best quality

Cas:56816-01-4

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

inquiry

Hebei Sankai Chemical Technology Co., Ltd

1. Product advantages ♦ High purity, all above 98.5%, no impurities after the dissolution ♦ We will test each batch to ensure quality ♦ OEM and private brand services designed for free ♦ Various cap colors available &diam

Ethyl (S)-3-hydroxybutyrate CAS56816-01-4

Cas:56816-01-4

Min.Order:1 Kilogram

FOB Price: $7.0 / 9.0

Type:Trading Company

inquiry

Shanghai Upbio Tech Co.,Ltd

1.No Less 8 years exporting experience. Clients can 100% received goods 2.Lower Price with higher quality 3,Free sample 4,We are sincerely responsible for the "product quality" and "After Service" Upbio is Specialized

Butanoic acid,3-hydroxy-, ethyl ester, (3S)- 56816-01-4

Cas:56816-01-4

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Qingdao Beluga Import and Export Co., LTD

Ethyl (S)-3-hydroxybutyrate CAS:56816-01-4 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specializing in high quality orga

Ethyl (S)-3-hydroxybutyrate CAS:56816-01-4

Cas:56816-01-4

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Shandong Hanjiang Chemical Co., Ltd.

Hello, dear friend! I'm Hansen and Allen from China. Welcome to my lookchem mall! The following is a brief introduction of our company's products and services. If you are interested in our products, please contact us by emai

Butanoic acid,3-hydroxy-, ethyl ester, (3S)-

Cas:56816-01-4

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Hebei Quanhe Biotechnology Co. LTD

1. Timely and efficient service to ensure communication with customers 2. Produce products of different specifications and sizes according to your requirements. 3. Quality procedures and standards recognized by SGS. Advanced plant equipment ensures s

Ethyl (S)-3-hydroxybutyrate

Cas:56816-01-4

Min.Order:1 Kilogram

FOB Price: $400.0 / 500.0

Type:Lab/Research institutions

inquiry

Wuhan Han Sheng New Material Technology Co.,Ltd

Our Advantage: high quality with competitive price High quality standard: BP/USP/EP Enterprise standard All purity customized Fast and safe delivery We have reliable forwarder who can help us deliver our goods more fast and safe. We

TIANFUCHEM--56816-01-4--High purity Ethyl (S)-3-hydroxybutyrate factory price

Cas:56816-01-4

Min.Order:10 Kilogram

Negotiable

Type:Trading Company

inquiry

Baoji Guokang Healthchem co.,ltd

Our company has been in existence for 10 years since its establishment. We have our own unique team. The company integrates independent research and development, production and sales. We have established famous brands at home and abroad. At present

(S)-Ethyl 3-hydroxybutanoate

Cas:56816-01-4

Min.Order:1 Gram

FOB Price: $106.0

Type:Trading Company

inquiry

Afine Chemicals Limited

Company Introduction 1. Established in 2005, with two independent business divisions: Fine chemicals division; Pharmaceutical division. 2. Main product: Optical brightener Textile auxiliary Dye stuff Pigments

ETHYL (S)-3-HYDROXYBUTYRATE

Cas:56816-01-4

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou J&H Chemical Co., Ltd.

J&H CHEM R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. J&H CHEM has some Manufacturing base in Jia

Ethyl (S)-3-hydroxybutyrate

Cas:56816-01-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

SHANGHAI T&W PHARMACEUTICAL CO., LTD.

A substitute for perfluorooctanoic acid, mainly used as a surfactant, dispersant, additive, etc Appearance:White solid or Colorless liquid Purity:99.3 % We will ship the goods in a timely manner as required We can provide relevant documents acc

Ethyl (S)-3-hydroxybutyrate

Cas:56816-01-4

Min.Order:4 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Zibo Hangyu Biotechnology Development Co., Ltd

Zibo Hangyu Biotechnology Development Co., Ltd is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemi

High quality Ethyl (S)-(+)-3-Hydroxybutyrate

Cas:56816-01-4

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

Henan Wentao Chemical Product Co., Ltd.

1)quick response within 12 hours; 2)quality guarantee: all products are strictly tested by our qc, confirmed by qa and approved by third party lab in china, usa, canada, germany, uk, italy, france etc. 3) oem/odm available; 4) rea

Ethyl (S)-3-hydroxybutyrateCAS NO.:56816-01-4

Cas:56816-01-4

Min.Order:1 Gram

FOB Price: $2.0

Type:Lab/Research institutions

inquiry

Shanghai Minstar Chemical Co., Ltd

Product Name: Ethyl (S)-3-hydroxybutyrate Synonyms: (3S)-3-Hydroxybutanoic acid ethyl;(3S)-3-Hydroxybutyric acid ethyl;(S)-3-Hydroxybutanoic acid ethyl;(S)-3-Hydroxybutyric acid ethyl;Ethyl (S)-(+)-3-Hydroxybutyrate;(R)-2-HEPTANOL EE 97+%;Buta

Ethyl (S)-3-hydroxybutyrate

Cas:56816-01-4

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

EAST CHEMSOURCES LIMITED

factory?direct?saleAppearance:White Powder Storage:Store In Dry, Cool And Ventilated Place Package:25kg/drum, also according to the clients requirement Application:It is widely used as a thickener, emulsifier and stabilizer Transportation:By Sea Or B

TIANFUCHEM--56816-01-4--High purity Ethyl (S)-3-hydroxybutyrate factory price

Cas:56816-01-4

Min.Order:1 Kilogram

FOB Price: $18.0 / 20.0

Type:Trading Company

inquiry

Shandong Mopai Biotechnology Co., LTD

Shandong Mopai Biotechnology Co., LTD is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemicals. W

TIANFUCHEM--56816-01-4--High purity Ethyl (S)-3-hydroxybutyrate factory price

Cas:56816-01-4

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

KAISA GROUP INC

1.Applied in food field.it can improve the immune system and prolong life. 2.Appliedin cosmetic field.it can improve the skin care. 3.Applied in pharmaceutical field.it can treat various dieases. 4.Our product quality assurance will make our customer

TIANFUCHEM--56816-01-4--High purity Ethyl (S)-3-hydroxybutyrate factory price

Cas:56816-01-4

Min.Order:1 Metric Ton

FOB Price: $1.5

Type:Trading Company

inquiry

Hangzhou ZeErRui Chemical Co., Ltd.

Product name Ethyl (S)-3-hydroxybutyrate Content ≥98% CAS NO. 56816-01-4 Package Structure Formula Appearance:Detai

thyl (S)-3-hydroxybutyrate

Cas:56816-01-4

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Suzhou Health Chemicals Co., Ltd.

High quality,stable supply chain.Appearance:white/off-white or light yellow Storage:Store in cool and dry place, keep away from strong light and heat. Package:aluminum bottle,glass bottle,PTFE bottle,cardboard drum Application:This product can be use

Ethyl (S)-3-hydroxybutyrate

Cas:56816-01-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Bluecrystal chem-union

We are a Union of chemistry in China, consists of chemists,engineers, laboratories,factories in China. We organize surplus capacity of R&D and production as well as custom synthesis for chemical products and chemical business project. We are supp

TIANFUCHEM--56816-01-4--High purity Ethyl (S)-3-hydroxybutyrate factory price

Cas:56816-01-4

Min.Order:1 Metric Ton

FOB Price: $1.0

Type:Trading Company

inquiry

Hebei Mojin Biotechnology Co.,Ltd

1, High quality with competitive price:2, Fast and safe delivery3.Excellent pre-sales and after-sales service4. Well-trained and professional technologist and sales with rich experience in the field for 5-10 yearsAppearance:see detailed specification

Butanoic acid,3-hydroxy-, ethyl ester, (3S)-

Cas:56816-01-4

Min.Order:0

Negotiable

Type:Trading Company

inquiry

GIHI CHEMICALS CO.,LIMITED

Lower price, sample is available,SDS test documents are available,large stock in warehouseAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:Fine chemical intermediates, used as the main raw material for the synthe

Ethyl (S)-(+)-3-hydroxybutyrate

Cas:56816-01-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Kono Chem Co.,Ltd

high purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air Port:Beijing or Guangzhou

Ethyl (S)-3-hydroxybutyrate

Cas:56816-01-4

Min.Order:0

Negotiable

Type:Other

inquiry

Hangzhou Dingyan Chem Co., Ltd

R & D enterprises have their own stock in stockAppearance:To be subject to the object Package:Customized Application:pharmaceutical intermediates Transportation:Air Port:Shanghai;Guangzhou

(S)-Ethyl 3-hydroxybutanoate

Cas:56816-01-4

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Synthetic route

ethyl acetoacetate
141-97-9

ethyl acetoacetate

ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

Conditions
ConditionsYield
With [NEt2H2]-[{RuCl(S)-BINAP}2(μ-Cl)3]; hydrogen In methanol; ethanol at 50℃; under 22801.5 Torr; for 12h; Inert atmosphere; Autoclave; optical yield given as %ee;100%
With hydrogen In ethanol at 80℃; under 15001.5 Torr; for 10h; enantioselective reaction;99.5%
With C32H40F6O6P2Pd; hydrogen In acetone at 0℃; under 23272.3 Torr; for 12h; Autoclave; enantioselective reaction;99%
ethyl 3-hydroxybutyrate
5405-41-4

ethyl 3-hydroxybutyrate

ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

Conditions
ConditionsYield
With alcohol dehydrogenase from Lactobacillus kefir; alcohol dehydrogenase from Rhodococcus ruber DSM 44541; YcnD-oxidoreductase at 30℃; for 6h; pH=7.5; aq. buffer; Resolution of racemate; Enzymatic reaction; optical yield given as %ee; enantiospecific reaction;99%
With Alcaligenes faecalis DSM 13975 cells; alcohol dehydrogenase from Rhodococcus erythropolis; glucose dehydrogenase BS; D-glucose; nicotinamide adenine dinucleotide In alkaline aq. solution at 30℃; for 16h; pH=7.5;
ethyl (3S)-3-{[tert-butyl(dimethyl)silyl]oxy}butanoate
105729-39-3

ethyl (3S)-3-{[tert-butyl(dimethyl)silyl]oxy}butanoate

ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

Conditions
ConditionsYield
With cerium(III) chloride; sodium iodide In acetonitrile for 3h; Heating;95%
ethanol
64-17-5

ethanol

carbon monoxide
201230-82-2

carbon monoxide

(S)-Propylene oxide
16088-62-3

(S)-Propylene oxide

ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

Conditions
ConditionsYield
With hydrogen; 4-aminopyridine; dicobalt octacarbonyl at 40℃; under 7500.75 Torr; for 24h;92%
With 1,1-dimethyl-3,3-diethylguanidinecarbonylcobalt at 80℃; under 45004.5 Torr; for 24h; Autoclave;
ethyl (+/-)-3-(3',5'-dinitrobenzoyloxy)butanoate
81378-01-0

ethyl (+/-)-3-(3',5'-dinitrobenzoyloxy)butanoate

ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

Conditions
ConditionsYield
With titanium(IV) tetraethanolate In ethanol at 78℃; for 96h;90%
(S)-3-(3',5'-Dinitrobenzoyloxy)-buttersaeureaethylester
79427-05-7

(S)-3-(3',5'-Dinitrobenzoyloxy)-buttersaeureaethylester

ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

Conditions
ConditionsYield
With potassium hydroxide In tetrahydrofuran; ethanol90%
With potassium hydroxide In tetrahydrofuran; ethanol at -5 - 0℃; for 1h;89%
With potassium hydroxide79%
With potassium hydroxide In tetrahydrofuran; ethanol at 0℃; for 0.833333h;113 mg
ethanol
64-17-5

ethanol

C10H10N2O7

C10H10N2O7

ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

Conditions
ConditionsYield
With titanium(IV) isopropylate for 2h; Inert atmosphere; Reflux;90%
ethanol
64-17-5

ethanol

N-(3-hydroxy-butyryl)-benzamide
809275-92-1

N-(3-hydroxy-butyryl)-benzamide

ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

Conditions
ConditionsYield
With erbium(III) triflate at 4℃; for 20h;89%
ethanol
64-17-5

ethanol

(R)-(-)-3-hydroxy-4,4,4-trichlorobutyric β-lactone
16493-63-3

(R)-(-)-3-hydroxy-4,4,4-trichlorobutyric β-lactone

A

ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

B

ethyl (L)-4-chloro-3-hydroxybutyrate
10488-69-4, 86728-85-0, 87068-18-6, 90866-33-4

ethyl (L)-4-chloro-3-hydroxybutyrate

Conditions
ConditionsYield
With hydrogen; potassium acetate; palladium on activated charcoal at 25℃; for 80h;A n/a
B 88%
ethyl acetoacetate
141-97-9

ethyl acetoacetate

A

Ethyl (R)-3-hydroxybutanoate
24915-95-5

Ethyl (R)-3-hydroxybutanoate

B

ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

Conditions
ConditionsYield
With citrate-phosphate-borate buffer for 24h; Ambient temperature; baker's yeast immobilized in calcium alginate; Title compound not separated from byproducts;A n/a
B 85%
With Convolvulus sepium for 120h; pH=5.8; aq. phosphate buffer; optical yield given as %ee;A n/a
B 70%
yeast Conversion of starting material; Enzymatic reaction;A n/a
B 26%
ethyl 3-hydroxybutyrate
5405-41-4

ethyl 3-hydroxybutyrate

vinyl n-butyrate
123-20-6

vinyl n-butyrate

A

ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

B

3-Butyryloxy-butyric acid ethyl ester

3-Butyryloxy-butyric acid ethyl ester

Conditions
ConditionsYield
With 4 Angstroem MS; porcin pancreatic lipase In toluene 1.) 37 deg C, 16 h; 2.) 55 deg C, 24 h;A 83%
B n/a
lipase P from Pseudomonas In toluene at 65℃; for 42h;A 80.5%
B n/a
(-)-(R)-Ethyl 3-(mesyloxy)butanoate
126434-58-0

(-)-(R)-Ethyl 3-(mesyloxy)butanoate

ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

Conditions
ConditionsYield
With calcium carbonate In water at 80℃; for 3h; Inert atmosphere;82%
With water; calcium carbonate70%
ethanol
64-17-5

ethanol

(S)-3-Hydroxybutanoic Acid
6168-83-8

(S)-3-Hydroxybutanoic Acid

ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

Conditions
ConditionsYield
With sulfuric acid73%
With sulfuric acid73%
C6H12O4S

C6H12O4S

ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

Conditions
ConditionsYield
With hydrogen; Raney-Ni (W4) In ethanol68%
(S)-3-Hydroxy-dithiobutyric acid methyl ester
107290-90-4

(S)-3-Hydroxy-dithiobutyric acid methyl ester

ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

Conditions
ConditionsYield
With CuCl2-CuO In ethanol for 24h; Ambient temperature;62%
(2E,4E)-7-(t-Butyl-dimethylsilyloxy)-2,4-octadiensaeuremethylester
79427-02-4

(2E,4E)-7-(t-Butyl-dimethylsilyloxy)-2,4-octadiensaeuremethylester

A

ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

B

(2E,4E)-7-(t-Butyl-dimethylsilyloxy)-2,4-octadiensaeure

(2E,4E)-7-(t-Butyl-dimethylsilyloxy)-2,4-octadiensaeure

Conditions
ConditionsYield
With hydrogenchloride In tetrahydrofuran at 30℃; for 3h;A 58%
B 22%
ethanol
64-17-5

ethanol

(S)-3-(1-ethoxyethoxy)butyronitrile
77669-83-1

(S)-3-(1-ethoxyethoxy)butyronitrile

ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

Conditions
ConditionsYield
With hydrogenchloride; water for 3h;47%
With hydrogenchloride
3-(Naphthalen-1-ylcarbamoyloxy)-butyric acid ethyl ester
81327-44-8

3-(Naphthalen-1-ylcarbamoyloxy)-butyric acid ethyl ester

ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

Conditions
ConditionsYield
With titanium(IV) tetraethanolate In ethanol at 130℃; under 3800 Torr; for 120h;45%
ethyl 2-chloro-3-oxo-butyrate
609-15-4

ethyl 2-chloro-3-oxo-butyrate

A

ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

B

ethyl (2R,3S)-2-chloro-3-hydroxybutanoate
110444-43-4

ethyl (2R,3S)-2-chloro-3-hydroxybutanoate

Conditions
ConditionsYield
Baker's yeast;A n/a
B 40%
ethyl 3-hydroxybutyrate
5405-41-4

ethyl 3-hydroxybutyrate

A

(R)-3-hydroxybutyric acid
625-72-9

(R)-3-hydroxybutyric acid

B

ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

Conditions
ConditionsYield
With sodium hydroxide In water at 30℃; pH=6.9;A n/a
B 36.4%
ethyl acetoacetate
141-97-9

ethyl acetoacetate

A

ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

B

3,3-bismethoxybutyric acid methyl ester
29267-46-7

3,3-bismethoxybutyric acid methyl ester

Conditions
ConditionsYield
With <(-)-2,2'-bis(diphenylphosphino)-3,3'-bibenzothiophene>RuCl2; hydrogen In methanol at 70℃; under 73550.8 Torr; for 2h; Yield given;A n/a
B 5%
ethyl 3-hydroxybutyrate
5405-41-4

ethyl 3-hydroxybutyrate

A

Ethyl (R)-3-hydroxybutanoate
24915-95-5

Ethyl (R)-3-hydroxybutanoate

B

ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

Conditions
ConditionsYield
Yield given. Yields of byproduct given. Title compound not separated from byproducts;
With pentyl cage-coated capillary column Resolution of racemate;
With homochiral metal-organic cage [Zn3(deprotonated [3+3] macrocyclic Schiff base of trans-1,2-diaminocyclohexane and 4-tert-butyl-2,6-diformylphenol)2] coated capillary column In dichloromethane at 118℃; Resolution of racemate; enantioselective reaction;
ethyl acetoacetate
141-97-9

ethyl acetoacetate

A

(S)-3-Hydroxybutanoic Acid
6168-83-8

(S)-3-Hydroxybutanoic Acid

B

(R)-3-hydroxybutyric acid
625-72-9

(R)-3-hydroxybutyric acid

C

Ethyl (R)-3-hydroxybutanoate
24915-95-5

Ethyl (R)-3-hydroxybutanoate

D

ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

Conditions
ConditionsYield
With Halobacterium halobium; pepton; potassium chloride; water; sodium citrate; magnesium sulfate; sodium chloride at 40℃; for 120h; Irradiation; Yields of byproduct given. Title compound not separated from byproducts;
With Halobacterium halobium; pepton; potassium chloride; sodium citrate; magnesium sulfate; sodium chloride In water at 40℃; for 120h; Irradiation; Yield given. Yields of byproduct given. Title compound not separated from byproducts;
ethyl 3-nitro-oxy-butanoate
100009-46-9

ethyl 3-nitro-oxy-butanoate

A

Ethyl (R)-3-hydroxybutanoate
24915-95-5

Ethyl (R)-3-hydroxybutanoate

B

ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

Conditions
ConditionsYield
With hydrogen; palladium on activated charcoal In methanol Yield given. Yields of byproduct given. Title compound not separated from byproducts;
(S)-3-Hydroxy-2-methanesulfinyl-butyric acid ethyl ester

(S)-3-Hydroxy-2-methanesulfinyl-butyric acid ethyl ester

ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

Conditions
ConditionsYield
With aluminum amalgam Yield given;
With aluminium amalgam Yield given;
ethyl (3R)-4,4,4-trichloro-3-hydroxybutanoate
166896-25-9

ethyl (3R)-4,4,4-trichloro-3-hydroxybutanoate

ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

Conditions
ConditionsYield
With hydrogen; potassium carbonate; palladium on activated charcoal In methanol under 2280 Torr;
ethanol
64-17-5

ethanol

(R)-(-)-3-hydroxy-4,4,4-trichlorobutyric β-lactone
16493-63-3

(R)-(-)-3-hydroxy-4,4,4-trichlorobutyric β-lactone

A

ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

B

ethyl (L)-4-chloro-3-hydroxybutyrate
10488-69-4, 86728-85-0, 87068-18-6, 90866-33-4

ethyl (L)-4-chloro-3-hydroxybutyrate

C

ethyl (R)-3-hydroxy-4,4-dichlorobutyrate

ethyl (R)-3-hydroxy-4,4-dichlorobutyrate

Conditions
ConditionsYield
With hydrogen; potassium acetate; palladium on activated charcoal at 25℃; for 80h; Product distribution; other reagents, catalysts, and reaction times;A 7 % Chromat.
B 87 % Chromat.
C 6 % Chromat.
ethanol
64-17-5

ethanol

poly[(R)-hydroxybutyrate] BIOPOL D300G

poly[(R)-hydroxybutyrate] BIOPOL D300G

A

ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

C

ethyl (E)-crotonate
623-70-1

ethyl (E)-crotonate

Conditions
ConditionsYield
Multistep reaction. Title compound not separated from byproducts;
trans-Crotonaldehyde
123-73-9

trans-Crotonaldehyde

ethanol
64-17-5

ethanol

A

Ethyl (R)-3-hydroxybutanoate
24915-95-5

Ethyl (R)-3-hydroxybutanoate

B

ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

Conditions
ConditionsYield
Stage #1: trans-Crotonaldehyde; ethanol With dihydrogen peroxide In chloroform at -20℃; for 16h;
Stage #2: With N-ethyl-N,N-diisopropylamine In chloroform at 30℃; for 15h; Further stages. Title compound not separated from byproducts.;
Isopropenyl acetate
108-22-5

Isopropenyl acetate

ethyl 3-hydroxybutyrate
5405-41-4

ethyl 3-hydroxybutyrate

A

ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

B

(R)-3-Acetoxybuttersaeure-ethylester
114592-78-8

(R)-3-Acetoxybuttersaeure-ethylester

C

(S)-ethyl 3-acetoxybutanoate

(S)-ethyl 3-acetoxybutanoate

Conditions
ConditionsYield
With Candida antarctica lipase B at 23℃; Title compound not separated from byproducts.;
3,4-dihydro-2H-pyran
110-87-2

3,4-dihydro-2H-pyran

ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

(3S)-3-<<(2R,S)-3,4,5,6-Tetrahydro-2H-pyran-2-yl>oxy>buttersaeure-ethylester
79016-08-3

(3S)-3-<<(2R,S)-3,4,5,6-Tetrahydro-2H-pyran-2-yl>oxy>buttersaeure-ethylester

Conditions
ConditionsYield
100%
With pyridinium p-toluenesulfonate In dichloromethane for 2.5h; Reflux;98%
With toluene-4-sulfonic acid In diethyl ether 1.) 0 deg C, 2.5 h, 2.) RT, 0.5 h;97%
ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

tert-butyldimethylsilyl chloride
18162-48-6

tert-butyldimethylsilyl chloride

ethyl (3S)-3-{[tert-butyl(dimethyl)silyl]oxy}butanoate
105729-39-3

ethyl (3S)-3-{[tert-butyl(dimethyl)silyl]oxy}butanoate

Conditions
ConditionsYield
With 1H-imidazole In dichloromethane at 0 - 23℃;100%
With 1H-imidazole In dichloromethane at 20℃; for 12h;100%
With 1H-imidazole In dichloromethane at 0 - 20℃; Inert atmosphere;98%
ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

ethyl vinyl ether
109-92-2

ethyl vinyl ether

(3S)-3-(1'-Aethoxyaethoxy)buttersaeure-aethylester
82614-86-6

(3S)-3-(1'-Aethoxyaethoxy)buttersaeure-aethylester

Conditions
ConditionsYield
With trifluoroacetic acid for 48h; Ambient temperature;98%
With trifluoroacetic acid 1.) a) -5 deg C, 18 h, b) 20 deg C, 2 h;93%
trifluoroacetic acid 0 deg C, 2 h, then 5 deg C, 16 h;
ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

ethyl chloromethyl ether
3188-13-4

ethyl chloromethyl ether

(S)-ethyl 3-(ethoxymethoxy)butanoate
137645-28-4

(S)-ethyl 3-(ethoxymethoxy)butanoate

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In dichloromethane at 0 - 20℃; for 17h; Inert atmosphere;98%
90%
ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

tert-butylchlorodiphenylsilane
58479-61-1

tert-butylchlorodiphenylsilane

C22H30O3Si
956225-28-8

C22H30O3Si

Conditions
ConditionsYield
With 1H-imidazole In dichloromethane at 20℃; for 18h;97%
ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

methanesulfonyl chloride
124-63-0

methanesulfonyl chloride

(S)-ethyl 3-mesyloxybutyrate
135587-63-2

(S)-ethyl 3-mesyloxybutyrate

Conditions
ConditionsYield
With triethylamine In dichloromethane at 0℃; for 2h;96.07%
With triethylamine In dichloromethane at 0 - 25℃; for 2h; Inert atmosphere;
ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

L(+)-3-hydroxy-butyric acid hydrazide
89226-47-1

L(+)-3-hydroxy-butyric acid hydrazide

Conditions
ConditionsYield
With hydrazine hydrate In ethanol; water for 1h; Heating;94%
ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

methyl iodide
74-88-4

methyl iodide

ethyl (2S,3S)-3-hydroxy-2-methylbutanoate
78088-28-5

ethyl (2S,3S)-3-hydroxy-2-methylbutanoate

Conditions
ConditionsYield
Stage #1: ethyl (S)-3-hydroxybutyrate With lithium diisopropyl amide In tetrahydrofuran; N,N,N,N,N,N-hexamethylphosphoric triamide; hexane at -78 - -40℃; Frater-Seebach alkylation; Inert atmosphere;
Stage #2: methyl iodide In tetrahydrofuran; N,N,N,N,N,N-hexamethylphosphoric triamide; hexane at -78 - 0℃; for 2h; Frater-Seebach alkylation; Inert atmosphere;
92%
Stage #1: ethyl (S)-3-hydroxybutyrate With lithium diisopropyl amide In tetrahydrofuran; N,N,N,N,N,N-hexamethylphosphoric triamide; hexane at -78 - -40℃; Frater-Seebach alkylation; Inert atmosphere;
Stage #2: methyl iodide In tetrahydrofuran; N,N,N,N,N,N-hexamethylphosphoric triamide; hexane at -78 - 0℃; for 2h; Frater-Seebach alkylation; Inert atmosphere; optical yield given as %de;
92%
Stage #1: ethyl (S)-3-hydroxybutyrate With N,N,N,N,N,N-hexamethylphosphoric triamide; lithium diisopropyl amide In tetrahydrofuran; hexane at -78 - -40℃; for 0.333333h; Inert atmosphere;
Stage #2: methyl iodide In tetrahydrofuran; hexane at -78 - 0℃; for 3h; Inert atmosphere;
82%
Dimethoxymethane
109-87-5

Dimethoxymethane

ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

ethyl (3S)-3-(methoxymethoxy)butanoate
73267-69-3

ethyl (3S)-3-(methoxymethoxy)butanoate

Conditions
ConditionsYield
With iodine; allyl-trimethyl-silane at 20℃; transacetalization;90%
With iodine; allyl-trimethyl-silane at 20℃;
ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

Conditions
ConditionsYield
With lithium aluminium tetrahydride In tetrahydrofuran for 30h; Heating;89%
ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

chloromethyl methyl ether
107-30-2

chloromethyl methyl ether

ethyl (3S)-3-(methoxymethoxy)butanoate
73267-69-3

ethyl (3S)-3-(methoxymethoxy)butanoate

Conditions
ConditionsYield
With N,N-diethylaniline at 25℃; for 72h;89%
With N-ethyl-N,N-diisopropylamine In dichloromethane at 0℃;84%
ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

2-[(4-methoxybenzyl)oxy]-3-nitropyridine
350848-02-1

2-[(4-methoxybenzyl)oxy]-3-nitropyridine

(S)-3-(4-Methoxy-benzyloxy)-butyric acid ethyl ester
170649-26-0

(S)-3-(4-Methoxy-benzyloxy)-butyric acid ethyl ester

Conditions
ConditionsYield
With trimethylsilyl trifluoromethanesulfonate In dichloromethane at 20℃; for 0.166667h;89%
ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

4-methoxybenzyl-2-pyridylthio carbonate
220235-77-8

4-methoxybenzyl-2-pyridylthio carbonate

(S)-3-(4-Methoxy-benzyloxy)-butyric acid ethyl ester
170649-26-0

(S)-3-(4-Methoxy-benzyloxy)-butyric acid ethyl ester

Conditions
ConditionsYield
With silver trifluoromethanesulfonate In dichloromethane for 0.666667h; Ambient temperature;88%
ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

O-benzyl 2,2,2-trichloroacetimidate
81927-55-1

O-benzyl 2,2,2-trichloroacetimidate

(R)-3-(benzyloxy)butanoic acid ethyl ester
112068-33-4

(R)-3-(benzyloxy)butanoic acid ethyl ester

Conditions
ConditionsYield
With trifluorormethanesulfonic acid In dichloromethane; cyclohexane at 20℃; for 1h;87%
With trifluorormethanesulfonic acid In dichloromethane; cyclohexane for 36h; Ambient temperature;83%
With trifluorormethanesulfonic acid78%
acetic acid tert-butyl ester
540-88-5

acetic acid tert-butyl ester

ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

(+)-(5S)-hydroxy-5-oxo-3-hexanoate de tert-butyle
97037-72-4, 125404-66-2, 125404-65-1

(+)-(5S)-hydroxy-5-oxo-3-hexanoate de tert-butyle

Conditions
ConditionsYield
With lithium diisopropyl amide In tetrahydrofuran Claisen condensation;86%
With lithium diisopropyl amide 1.) THF/hexane, -75 deg C, 20 min, 2.) THF, -50 deg C, 2 h; Yield given. Multistep reaction;
ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

(2S,1'S)-2-(1-hydroxyethyl)-pent-4-enoate d'ethyle
73574-05-7

(2S,1'S)-2-(1-hydroxyethyl)-pent-4-enoate d'ethyle

Conditions
ConditionsYield
85.2%
ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

allyl bromide
106-95-6

allyl bromide

(2S,1'S)-2-(1-hydroxyethyl)-pent-4-enoate d'ethyle
73574-05-7

(2S,1'S)-2-(1-hydroxyethyl)-pent-4-enoate d'ethyle

Conditions
ConditionsYield
With lithium hexamethyldisilazane In tetrahydrofuran at -70℃; Inert atmosphere;85%
80%
(i) LDA, THF, (ii) /BRN= 605308/, HMPT; Multistep reaction;
ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

benzyl bromide
100-39-0

benzyl bromide

(R)-3-(benzyloxy)butanoic acid ethyl ester
112068-33-4

(R)-3-(benzyloxy)butanoic acid ethyl ester

Conditions
ConditionsYield
With silver(l) oxide In diethyl ether at 40℃; Inert atmosphere;85%
With silver(l) oxide In diethyl ether31%
ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

1,3-butanediol
24621-61-2

1,3-butanediol

Conditions
ConditionsYield
With lithium aluminium tetrahydride In diethyl ether for 6h;85%
With lithium aluminium tetrahydride In diethyl ether82%
With lithium borohydride In methanol; diethyl ether at 20℃; Cooling with ice;74%
With lithium aluminium tetrahydride In tetrahydrofuran for 2.5h; Ambient temperature;66%
With lithium aluminium tetrahydride In tetrahydrofuran
ethyl (S)-3-hydroxybutyrate
56816-01-4

ethyl (S)-3-hydroxybutyrate

p-toluenesulfonyl chloride
98-59-9

p-toluenesulfonyl chloride

ethyl (S)-3-tosyloxy-butanoate
100009-40-3

ethyl (S)-3-tosyloxy-butanoate

Conditions
ConditionsYield
With pyridine; dmap at 0 - 20℃; for 5.5h;85%
With pyridine In chloroform78%
With pyridine In chloroform at 0℃; for 12h;

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