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64622-31-7

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64622-31-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 64622-31-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,6,2 and 2 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 64622-31:
(7*6)+(6*4)+(5*6)+(4*2)+(3*2)+(2*3)+(1*1)=117
117 % 10 = 7
So 64622-31-7 is a valid CAS Registry Number.

64622-31-7Relevant articles and documents

Benzyne-Mediated Esterification Reaction

Li, Yang,Shi, Jiarong,Zhao, Jinlong

supporting information, p. 7274 - 7278 (2021/10/01)

A benzyne-mediated esterification of carboxylic acids and alcohols under mild conditions has been realized, which is made possible via a selective nucleophilic addition of carboxylic acid to benzyne in the presence of alcohol. After a subsequent transesterification with alcohol, the corresponding esters can be produced efficiently. This benzyne-mediated protocol can be used on the modification of Ibuprofen, cholesterol, estradiol, and synthesis of nandrolone phenylpropionate. In addition, benzyne can also be used to promote lactonization and amidation reaction.

A new mild method for the synthesis of esters and benzenethiol esters by activation of pyridine-2-thiol or benzothiazol-2-thiol esters by methyl iodide

Ravi,Mereyala

, p. 6089 - 6090 (2007/10/02)

Activation of in-situ generated pyridine-2-thiol or benzothiazol-2-thiol esters by methyl iodide at room temperature in presence of alcohols and benzenethiol yields the corresponding esters and thiol esters.

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