223123-46-4

Basic information

• Product Name: (S)-Methyl 2-(Benzenesulfonyloxy)-2-(2-chlorophenyl)acetate
• Synonyms: (S)-Methyl 2-(Benzenesulfonyloxy)-2-(2-chlorophenyl)acetate;(αS)-2-Chloro-α-[(phenylsulfonyl)oxy]benzeneacetic Acid Methyl Ester
• CAS NO: 223123-46-4
• Molecular Formula: C₁₅H₁₃ClO₅S
• Molecular Weight: 340.77872
• Product Categories: Aromatics;Intermediates & Fine Chemicals;Pharmaceuticals;Sulfur & Selenium Compounds
• Mol File: 223123-46-4.mol
• Article Data: 2

Chemical Properties

• Boiling Point: 471.4±40.0 °C(Predicted)
• Appearance: /
• Density: 1.377±0.06 g/cm3(Predicted)
• Solubility: Chloroform, Methanol
• CAS DataBase Reference: (S)-Methyl 2-(Benzenesulfonyloxy)-2-(2-chlorophenyl)acetate(CAS DataBase Reference)
• NIST Chemistry Reference: (S)-Methyl 2-(Benzenesulfonyloxy)-2-(2-chlorophenyl)acetate(223123-46-4)
• EPA Substance Registry System: (S)-Methyl 2-(Benzenesulfonyloxy)-2-(2-chlorophenyl)acetate(223123-46-4)

Safety Data

• Hazardous Substances Data: 223123-46-4(Hazardous Substances Data)

Usage

Chemical Properties

Light Yellow Oil

Uses

Clopidogrel intermediate.

Upstream product

• 32345-59-8 methyl (R)-2-chloromandelate 
• 98-09-9 benzenesulfonyl chloride 

Downstream Products

• 113665-84-2 (S)-(+)-clopidogrel 
• 120202-66-6 (S)-(+)-clopidogrel bisulfate 
• 744256-69-7 clopidogrel besylate 

Relevant articles and documents

A preparation method of clopidogrel hydrogen sulfate type II

The invention discloses a preparation method of clopidogrel hydrogen sulfate type II. According to the method, clopidogrel hydrogen sulfate type II is prepared by taking clopidogrel free alkali as a raw material, and a preparation method of clopidogrel free alkali comprises the following steps: (1) preparing a reaction mixed solution of R-chloromandelic acid methyl ester by the reaction of R-chloromandelic acid and methanol in an organic solvent and in the presence of a catalyst; (2) mixing the reaction mixed solution of R-chloromandelic acid methyl ester with an organic base and a catalyst, reacting in the presence of benzenesulfonyl chloride to obtain a reaction mixed solution of methyl 2-benzenesulfonyl-2-chlorophenylacetate; (3) mixing the reaction mixed solution of methyl 2-benzenesulfonyl-2-chlorophenylacetate obtained in the step (2) with 4,5,6,7-Tetrahydrothieno[3,2,c] pyridine hydrochloride and potassium carbonate for reaction to obtain the clopidogrel free alkali. According to the method, the solvent does not need to be supplemented in the last two steps, the solvent is directly used, and the reaction liquid concentration time is saved.