Methyl (R)-(-)-3-hydroxybuty랫드 e

Methyl (R)-(-)-3-hydroxybuty랫드 e 속성

Methyl (R)-(-)-3-hydroxybuty랫드 e MSDS

Methyl (R)-(-)-3-hydroxybutyrate

Methyl (R)-(-)-3-hydroxybuty랫드 e C화학적 특성, 용도, 생산

화학적 성질

clear colorless liquid

용도

Methyl (R)-3-hydroxybutyrate may be used in the preparation of (R)-(-)-3-hydroxybutanoic acid and poly-(R)-(-)-3-hydroxybutyrate.

일반 설명

Methyl (R)-(-)-3-hydroxybutyrate is a monocarboxylic acid that is metabolized by phosphofructokinase and other enzymes to produce the corresponding 3-hydroxybutyrate. This compound is synthesized from tiglic acid, which can be obtained from corynebacterium. The production of it can be optimized by using a biotransformation process.

Synthesis

In the glove box, put RuCl3 (0.69mg, 0.0033mmol), (R)-BINAP (2.3mg, 0.0036mmol), (1R,2R)-1,2-diphenyl-1,2-ethylenediamine (0.78 mg, 0.0036mmol) and isopropanol (150g) were added to a single-necked flask equipped with a magnetic stirrer, the stirring was turned on, the metal precursor and the ligand were dissolved and coordinated for 30 minutes,Obtain the catalyst solution, seal the single-neck bottle, take it out of the glove box, and pump it into a 0.5L reactor with a flat flow pump under the protection of nitrogen. The reactor has been replaced with nitrogen in advance, and the substrate methyl acetoacetate (116g, 1mol) and Potassium tert-butoxide (0.12g).After the catalyst solution was added, the reactor was replaced with hydrogen for three times, 8MPa hydrogen was charged, and the reactor was turned on for stirring and heating.When the internal temperature of the reactor reaches 100°C, open the hydrogen gas inlet valve, keep the internal pressure of the reactor at 10MPa, start timing, keep the reaction for 5 hours, the flowmeter shows that the hydrogen absorption rate is less than 0.1mL/min, terminate the reaction, and cool the reactor To room temperature, sampling and GC analysis showed that the conversion rate of raw material methyl acetoacetate was 99.9%, and the selectivity of (R)-1,3-butanediol was 8.8%.The ee value is 99.2%, and the selectivity of Methyl (R)-(-)-3-hydroxybutyrate is 90.9%.

Methyl (R)-(-)-3-hydroxybuty랫드 e 준비 용품 및 원자재

원자재

준비 용품

Methyl (R)-(-)-3-hydroxybuty랫드 e 공급 업체

공급자	전화	이메일	국가	제품 수	이점
ChiRial Biomaterial Co Ltd	+8619951673840	cero.xia@chirial.com	China	156	58
Hebei Mojin Biotechnology Co., Ltd	+8613288715578	sales@hbmojin.com	China	12456	58
Capot Chemical Co.,Ltd.	571-85586718 +8613336195806	sales@capotchem.com	China	29797	60
Shanghai Daken Advanced Materials Co.,Ltd	+86-371-66670886	info@dakenam.com	China	15928	58
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21691	55
Chembon Pharmaceutical Co., Ltd.	+86-28-8425-2981		CHINA	724	55
Hangzhou FandaChem Co.,Ltd.	008657128800458; +8615858145714	fandachem@gmail.com	China	9348	55
career henan chemical co	+86-0371-86658258	sales@coreychem.com	China	29914	58
Zhejiang ZETian Fine Chemicals Co. LTD	18957127338	stella@zetchem.com	China	2141	58
Accela ChemBio Inc.	(+1)-858-699-3322	info@accelachem.com	United States	19965	58

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