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1402933-44-1

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1402933-44-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1402933-44-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,0,2,9,3 and 3 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1402933-44:
(9*1)+(8*4)+(7*0)+(6*2)+(5*9)+(4*3)+(3*3)+(2*4)+(1*4)=131
131 % 10 = 1
So 1402933-44-1 is a valid CAS Registry Number.

1402933-44-1Relevant articles and documents

Cinchona alkaloid and di-: Tert -butyldicarbonate-DMAP promoted efficient synthesis of (E)-nitroolefins

Poomathi, Nataraj,Perumal, Paramasivan T.

, p. 54495 - 54502 (2016/07/06)

The synthesis of nitroolefins from aldehydes and olefins is generally limited by the formation of a mixture of cis and trans compounds. Here we report an alternative, metal-free protocol for the synthesis of β-nitroolefins from arylidinemalononitrile using cinchona alkaloid along with di-tert-butyldicarbonate-DMAP in high yields with total selectivity.

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