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1277163-39-9

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1277163-39-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1277163-39-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,7,7,1,6 and 3 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1277163-39:
(9*1)+(8*2)+(7*7)+(6*7)+(5*1)+(4*6)+(3*3)+(2*3)+(1*9)=169
169 % 10 = 9
So 1277163-39-9 is a valid CAS Registry Number.

1277163-39-9Relevant articles and documents

Beyond the corey reaction II: Dimethylenation of sterically congested ketones

Barabash, Anastasiya V.,Butova, Ekaterina D.,Kanyuk, Igor M.,Schreiner, Peter R.,Fokin, Andrey A.

, p. 10669 - 10673 (2014)

Bulky methyl ketones show significantly decreased reactivities toward the Corey-Chaykovsky methylenation reagent dimethylsulfoxonium methylide (DMSM). The excess of base and temperature increase opens an alternative reaction channel that instead leads to

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