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1195778-42-7

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1195778-42-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1195778-42-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,9,5,7,7 and 8 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1195778-42:
(9*1)+(8*1)+(7*9)+(6*5)+(5*7)+(4*7)+(3*8)+(2*4)+(1*2)=207
207 % 10 = 7
So 1195778-42-7 is a valid CAS Registry Number.

1195778-42-7Relevant articles and documents

A highly stereoselective synthesis of glycidic amides based on a new class of chiral sulfonium salts: Applications in asymmetric synthesis

Sarabia, Francisco,Vivar-García, Carlos,García-Castro, Miguel,García-Ruiz, Cristina,Martín-Gálvez, Francisca,Sánchez-Ruiz, Antonio,Chammaa, Samy

, p. 15190 - 15201 (2013/01/15)

A new type of chiral sulfonium salts that are characterized by a bicyclic system has been designed and synthesized from α-amino acids. Their corresponding ylides, which were prepared by basic treatment of the sulfonium salts, reacted smoothly with a broad array of simple and chiral aldehydes to provide trans-epoxy amides in reasonable to very good yields and excellent stereoselectivities (>98 %). The obtained epoxy amides were found to be useful as synthetic building blocks. Thus, they were reduced into their corresponding epoxy alcohols and subjected to oxirane-ring-opening reactions with different types of nucleophiles.

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