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136561-53-0

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136561-53-0 Usage

Chemical Properties

White powder

Uses

Intermediate for the synthesis of taxol.

Check Digit Verification of cas no

The CAS Registry Mumber 136561-53-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,5,6 and 1 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 136561-53:
(8*1)+(7*3)+(6*6)+(5*5)+(4*6)+(3*1)+(2*5)+(1*3)=130
130 % 10 = 0
So 136561-53-0 is a valid CAS Registry Number.
InChI:InChI=1/C9H13NO2/c10-9(8(12)6-11)7-4-2-1-3-5-7/h1-5,8-9,11-12H,6,10H2/t8-,9-/m0/s1

136561-53-0SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name (2R,3S)-3-Phenylisoserine

1.2 Other means of identification

Product number -
Other names (2R,3S)-3-Amino-2-hydroxy-3-phenylpropanic acid

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:136561-53-0 SDS

136561-53-0Relevant articles and documents

Utilization of (18-Crown-6)-2,3,11,12-tetracarboxylic Acid as a Chiral NMR Solvating Agent for Diamines and β-Amino Acids

Rodriguez, Yolanda C.,Duarte, Tayla M.,Szakonyi, Zsolt,Forr?, Eniko,Fül?p, Ferenc,Wenzel, Thomas J.

, p. 708 - 715 (2015)

The compound (18-crown-6)-2,3,11,12-tetracarboxylic acid was evaluated as a chiral nuclear magnetic resonance (NMR) solvating agent for a series of diamines and bicyclic β-amino acids. The amine must be protonated for strong association with the crown ether. An advantage of (18-crown-6)-2,3,11,12-tetracarboxylic acid over many other crown ethers is that it undergoes a neutralization reaction with neutral amines to form the protonated species needed for binding. Twelve primary diamines in neutral and protonated forms were evaluated. Diamines with aryl and aliphatic groups were examined. Some are atropisomers with equivalent amine groups. Others have two nonequivalent amine groups. Association equilibria for these systems are complex, given the potential formation of 2:1, 1:1, and 1:2 crown-amine complexes and given the various charged species in solution for mixtures of the crown ether with the neutral amine. The crown ether produced enantiomeric differentiation in the 1H NMR spectrum of one or more resonances for every diamine substrate. Also, a series of five bicyclic β-amino acids were examined and (18-crown-6)-2,3,11,12-tetracarboxylic acid caused enantiomeric differentiation in the 1H NMR spectrum of three or more resonances of each compound. Chirality 27:708-715, 2015.

Enantioselective hydrolysis of 3,4-disubstituted β-lactams. An efficient enzymatic method for the preparation of a key Taxol side-chain intermediate

Galla, Zsolt,Beke, Ferenc,Forró, Eniko,Fül?p, Ferenc

, p. 107 - 112 (2015/12/01)

3,4-Disubstituted β-lactams 3-benzyloxy-4-(4-chlorophenyl)azetidin-2-one [(3S?,4R?)-(±)-1], 3-benzyloxy-4-phenylazetidin-2-one [(3S?,4R?)-(±)-2] and 4-(4-chlorophenyl)-3-phenoxyazetidin-2-one [(3S?,4R?)-(±)-3] were resolved through immobilized CAL-B-catalysed ring-cleavage reactions. Excellent enantioselectivities (E > 200) were obtained for (3S?,4R?)-(±)-1 and (3S?,4R?)-(±)-2 when the reactions were performed with added H2O as nucleophile in tert-butyl methyl ether at 70 °C, whereas only moderate E (12) was achieved for (3S?,4R?)-(±)-3 under the same conditions but in diisopropyl ether. The resulting ring-opened β-amino acids [(2R,3S)-4 (ee > 98%), (2R,3S)-5 (ee > 98%) and (2R,3S)-6 (ee = 50%)] and the unreacted β-lactams [(3S,4R)-1-3] (ee > 98%) could be easily separated.

New enzymatic two-step cascade reaction for the preparation of a key intermediate for the taxol side-chain

Forro, Enikoe,Fueloep, Ferenc

experimental part, p. 3074 - 3079 (2010/08/07)

Enzymatic strategies are reported for the synthesis of (2R, 3S)-3-amino-2-hydroxy-3-phenylpropionic acid (ee > 98%), a key intermediate of the side-chain of Taxolby enzymatic hydrolysis in organic media. The new enzymatic cascade reaction, which took place through Candida antarctica lipase B-catalysed deacylation followed by lactam ring-opening of racemic cis-3-acetoxy-4-phenylazetidin-2-one with H2O in iPr2O at: 60 °C, resulted in two different enantiopure products (ee ≥ 98%), one of them being the desired key intermediate for the side-chain of Taxol.

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