(+)-TERT-BUTYL (S)-3-HYDROXYBUTYRATE
- Product Name
- (+)-TERT-BUTYL (S)-3-HYDROXYBUTYRATE
- CAS No.
- 82578-45-8
- Chemical Name
- (+)-TERT-BUTYL (S)-3-HYDROXYBUTYRATE
- Synonyms
- (S)-(+)-T-BUTYL 3-HYDROXYBUTYRATE;Tert-butyl (S)-3-hydroxybutanoate;(S)-tert-Butyl 3-hydroxybutanoate;tert-butyl (3S)-3-hydroxybutanoate;(S)-(+)-T-BUTYL 3-HYDROXYBUTANOATE;(+)-TERT-BUTYL (S)-3-HYDROXYBUTYRATE;(S)-(+)-TERT-BUTYL 3-HYDROXYBUTYRATE;tert-Butyl(S)-(+)-3-hydroxybutyrate,98%;(S)-3-HYDROXY-BUTYRIC ACID TERT-BUTYL ESTER;Butanoic acid,3-hydroxy-,1,1-dimethylethyl ester,(S)-
- CBNumber
- CB1782826
- Molecular Formula
- C8H16O3
- Formula Weight
- 160.21
- MOL File
- 82578-45-8.mol
(+)-TERT-BUTYL (S)-3-HYDROXYBUTYRATE Property
- Boiling point:
- 228℃
- Density
- 0.960 g/mL at 20 °C(lit.)
- refractive index
- n20/D 1.422
- Flash point:
- 87℃
- storage temp.
- Sealed in dry,2-8°C
- pka
- 14.40±0.20(Predicted)
- Appearance
- Colorless to light yellow Liquid
- optical activity
- Consistent with structure
- CAS DataBase Reference
- 82578-45-8
Safety
- Safety Statements
- 23-24/25
- HS Code
- 2918199890
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- H956308
- Product name
- (S)-3-Hydroxy-butyricacidtert-butylester
- Packaging
- 250mg
- Price
- $60
- Updated
- 2021/12/16
- Product number
- CHM0005052
- Product name
- (S)-(+)-TERT-BUTYL 3-HYDROXYBUTYRATE
- Purity
- 95.00%
- Packaging
- 5G
- Price
- $1409.1
- Updated
- 2021/12/16
- Product number
- 075679
- Product name
- (S)-3-Hydroxybutyric acid tert-butyl ester
- Purity
- 95+%
- Packaging
- 5g
- Price
- $599
- Updated
- 2021/12/16
- Product number
- FB139762
- Product name
- (S)-tert-Butyl 3-hydroxybutanoate
- Packaging
- 5G
- Price
- $650
- Updated
- 2021/12/16
- Product number
- CHM0005052
- Product name
- (S)-(+)-TERT-BUTYL 3-HYDROXYBUTYRATE
- Purity
- 95.00%
- Packaging
- 1G
- Price
- $831.6
- Updated
- 2021/12/16
(+)-TERT-BUTYL (S)-3-HYDROXYBUTYRATE Chemical Properties,Usage,Production
Synthesis
1694-31-1
82578-45-8
The general procedure for the synthesis of tert-butyl (S)-3-hydroxybutyrate from tert-butyl acetoacetate is as follows: laboratory scale-up bioreduction of ketones 1-7 was carried out as follows. After 72 hours of fermentation, R. arrhizus mycelium was separated from the culture broth. 10% wet mycelium was suspended in 1.5 L of sterilized fresh medium in a 5 L Erlenmeyer flask, which was used as a working volume under aseptic conditions and incubated statically at room temperature for 72 hours. After fungal growth, an ethanol solution of the substrate (1 g) was added directly to the medium, followed by incubation on a rotary oscillator (100 rpm) for 8 days at room temperature. At the end of incubation, mycelium was isolated by filtration. The mycelium was washed with water and the combined aqueous phases were extracted with chloroform. The chloroform extract was washed with water and dried with Na2SO4. After removing the solvent under reduced pressure, the product alcohol was isolated, purified and characterized as described previously. The absolute configuration was determined by specific rotation sign and compared with literature data. Isolated yield: 0.81 g, [α]D26 = +28.6 (c 0.483, CHCl3), >99% ee {Literature value: [α]D26 = +32.3 (c 1.03, CHCl3), 99.0% ee}; 1H NMR (CDCl3, 200 MHz): δ 1.25 (d, 3H, CH3), 1.48 (s, 9H, CH3), 2.27-2.49 (m, 2H, CH2), 3.09 (s, 1H, OH), 4.08-4.22 (m, 1H, CHOH); 13C NMR (CDCl3, 200MHz, ppm): 22.21, 27.93, 43.79, 64.18, 80.94, 172.15; MTPA ester of the methoxy resonance, 1H NMR: δ 3.55 [major, (S)-isomer].
References
[1] RSC Advances, 2016, vol. 6, # 34, p. 28447 - 28450
[2] Tetrahedron Letters, 2006, vol. 47, # 27, p. 4619 - 4622
[3] Tetrahedron Asymmetry, 2008, vol. 19, # 19, p. 2272 - 2275
[4] Tetrahedron: Asymmetry, 2016, vol. 27, # 4-5, p. 188 - 192
[5] Tetrahedron Asymmetry, 1997, vol. 8, # 7, p. 1049 - 1054
(+)-TERT-BUTYL (S)-3-HYDROXYBUTYRATE Preparation Products And Raw materials
Raw materials
Preparation Products
(+)-TERT-BUTYL (S)-3-HYDROXYBUTYRATE Suppliers
- Tel
- 400-6106006
- Fax
- 021-67582001/03/05
- saleschina@alfa-asia.com
- Country
- China
- ProdList
- 30123
- Advantage
- 84
- Tel
- 021-54306202 13764082696
- info@hanhongsci.com
- Country
- China
- ProdList
- 42934
- Advantage
- 64
- Tel
- 021-61551611 13296011611
- Fax
- ＋86 21-50676805
- contact@trustwe.com
- Country
- China
- ProdList
- 9895
- Advantage
- 58
- Tel
- +86-21-60341587
- Fax
- +86-21-61294319
- sales@topbiochem.com
- Country
- China
- ProdList
- 6175
- Advantage
- 58
- Tel
- +86 21 61551611
- Fax
- +86 21 50676805
- Country
- China
- ProdList
- 9891
- Advantage
- 58
- Tel
- sales@witofly.com
- Country
- China
- ProdList
- 2864
- Advantage
- 52
- Tel
- 0371-53765687 18937137882
- Fax
- QQ:2885373884
- 2853979813@qq.com
- Country
- China
- ProdList
- 7992
- Advantage
- 55
- Tel
- 18511709189
- Fax
- 010-58043593
- sales@hechemist.com
- Country
- China
- ProdList
- 2835
- Advantage
- 58
- Tel
- 571-89925085
- Fax
- 0086-571-89925065
- sales@amadischem.com
- Country
- China
- ProdList
- 131957
- Advantage
- 58
- Tel
- 0751-2886750 13927877953
- Fax
- 0751-2886750
- 3005811397@qq.com
- Country
- China
- ProdList
- 13305
- Advantage
- 58
View Lastest Price from (+)-TERT-BUTYL (S)-3-HYDROXYBUTYRATE manufacturers
- Product
- Butanoic acid,3-hydroxy-,1,1-dimethylethyl ester,(S)- 82578-45-8
- Price
- US $0.00/g
- Min. Order
- 100g
- Purity
- 98%
- Supply Ability
- 1000 Kilogram/Kilograms per Month
- Release date
- 2020-04-16