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1203703-51-8

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1203703-51-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1203703-51-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,0,3,7,0 and 3 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1203703-51:
(9*1)+(8*2)+(7*0)+(6*3)+(5*7)+(4*0)+(3*3)+(2*5)+(1*1)=98
98 % 10 = 8
So 1203703-51-8 is a valid CAS Registry Number.

1203703-51-8Downstream Products

1203703-51-8Relevant articles and documents

Copper-catalyzed one-pot synthesis of 2-alkylidene-l,2,3, 4tetrahydropyrimidines

Lu, Wei,Song, Wangze,Hong, Deng,Lu, Ping,Wane, Yanguang

scheme or table, p. 1768 - 1772 (2011/02/26)

A one-pot synthesis of N-sulfonyl-2-alkylidene-l,2,3,4- tetrahydropyrimidines via a highly selective and copper-catalyzed multicomponent reaction of sulfonyl azides, terminal alkynes and αβ-unsaturated imines has been developed. The &a-unsaturated imine substrates could be generated from amines and α,β-unsaturated aldehydes in a one-pot process. The procedure is concise, general and efficient.

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