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204767-46-4

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204767-46-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 204767-46-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,4,7,6 and 7 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 204767-46:
(8*2)+(7*0)+(6*4)+(5*7)+(4*6)+(3*7)+(2*4)+(1*6)=134
134 % 10 = 4
So 204767-46-4 is a valid CAS Registry Number.

204767-46-4Downstream Products

204767-46-4Relevant articles and documents

Synthesis and Transformations of Methyl (E)-2-(Acetylamino)-3-cyanoprop-2-enoate und Methyl (E)-2-(Benzoylamino)-3-cyanoprop-2-enoate, Versatile Reagents for the Preparation of Polyfunctional Heterocyclic Systems

Pizzioli, Lucija,Ornik, Brina,Svete, Jurij,Stanovnik, Branko

, p. 231 - 235 (1998)

Methyl (E)-2-(acetylamino)-3-cyanoprop-2-enoate (2a) and its 2-benzoyl analog 2b were prepared from the corresponding methyl (Z)-2-(acylamino)-3-(dimethylamino)propenoates 1. Multifunctional compounds 2 are versatile synthons for preparation of polysubstituted heterocyclic systems such as pyrroles 4, pyrimidines 5 and 6, pyridazines 7, pyrazoles 8, 9, and 11, and isoxazoles 10.

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