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1408233-55-5

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1408233-55-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1408233-55-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,0,8,2,3 and 3 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1408233-55:
(9*1)+(8*4)+(7*0)+(6*8)+(5*2)+(4*3)+(3*3)+(2*5)+(1*5)=135
135 % 10 = 5
So 1408233-55-5 is a valid CAS Registry Number.

1408233-55-5Downstream Products

1408233-55-5Relevant articles and documents

Double nucleophilic N-alkylation of α-oxime-esters with Grignard reagents

Mizutani, Yusuke,Tanimoto, Hiroki,Morimoto, Tsumoru,Nishiyama, Yasuhiro,Kakiuchi, Kiyomi

, p. 5903 - 5906,4 (2020/08/20)

Double nucleophilic N-alkylation of α-oxime-esters, affording N,N-dialkyl-α-amino acids is herein described. Grignard reagents accomplished double N-alkylations via umpolung and various N,N-dialkylated α-amino acids were successfully synthesized in 15 min. Both electron-withdrawing sulfonyl groups and electron-donating silyl and methyl groups on oximes were available. Alkylmagnesium species and (E)-configuration of α-oxime-ester were essential to this cascade reaction.

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