Product Name

  • Name

    Ethyl (S)-3-hydroxybutyrate

  • EINECS 260-393-1
  • CAS No. 56816-01-4
  • Article Data124
  • CAS DataBase
  • Density 1.024 g/cm3
  • Solubility
  • Melting Point
  • Formula C6H12O3
  • Boiling Point 175 °C at 760 mmHg
  • Molecular Weight 132.159
  • Flash Point 64.4 °C
  • Transport Information
  • Appearance clear colorless liquid
  • Safety 23-24/25
  • Risk Codes
  • Molecular Structure Molecular Structure of 56816-01-4 (Ethyl (S)-3-hydroxybutyrate)
  • Hazard Symbols
  • Synonyms Butanoicacid, 3-hydroxy-, ethyl ester, (S)-;(+)-Ethyl 3-hydroxybutyrate;(3S)-3-Hydroxybutyric acid ethyl ester;(S)-(+)-3-Hydroxy-n-butyrate ethylester;(S)-(+)-Ethyl 3-hydroxybutanoate;(S)-(+)-Ethyl 3-hydroxybutyrate;(S)-3-Hydroxybutanoic acid ethyl ester;(S)-3-Hydroxybutyric acid ethyl ester;(S)-Ethyl 3-hydroxybutyrate;Ethyl (+)-3-hydroxybutanoate;Ethyl (S)-(+)-b-hydroxybutyrate;Ethyl(S)-3-hydroxybutanoate;Ethyl (S)-3-hydroxybutyrate;
  • PSA 46.53000
  • LogP 0.32040

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;

Ethyl (S)-3-hydroxybutyrate Specification

This chemical is called Ethyl (S)-3-hydroxybutyrate, and its CAS registry number is 56816-01-4. With the molecular formula of C6H12O3, its product categories are Alcohols, Hydroxy Esters and Derivatives; Chiral Compounds; Chiral Building Blocks; Simple Alcohols (Chiral); Synthetic Organic Chemistry; Organic Building Blocks; Chiral Alcohols. In addition, this chemical should be sealed in the cool and dry place.

Other characteristics of the Ethyl (S)-3-hydroxybutyrate can be summarised as followings: (1)ACD/LogP: -0.02; (2)# of Rule of 5 Violations: 0; (3)#H bond acceptors: 3; (4)#H bond donors: 1; (5)#Freely Rotating Bonds: 5; (6)Polar Surface Area: 35.53 Å2; (7)Index of Refraction: 1.427; (8)Molar Refractivity: 33.11 cm3; (9)Molar Volume: 128.9 cm3; (10)Polarizability: 13.12×10-24cm3; (11)Surface Tension: 33.2 dyne/cm; (12)Density: 1.024 g/cm3; (13)Flash Point: 64.4 °C; (14)Enthalpy of Vaporization: 47.89 kJ/mol; (15)Boiling Point: 175 °C at 760 mmHg; (16)Vapour Pressure: 0.362 mmHg at 25°C.

When you are using this chemical, please be cautious about it as the following: Don't breathe vapour. Avoid contacting with skin and eyes.

You can still convert the following datas into molecular structure:
1.SMILES: O=C(OCC)C[C@@H](O)C
2.InChI: InChI=1/C6H12O3/c1-3-9-6(8)4-5(2)7/h5,7H,3-4H2,1-2H3/t5-/m0/s1
3.InChIKey: OMSUIQOIVADKIM-YFKPBYRVBT

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