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454217-55-1

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454217-55-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 454217-55-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,5,4,2,1 and 7 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 454217-55:
(8*4)+(7*5)+(6*4)+(5*2)+(4*1)+(3*7)+(2*5)+(1*5)=141
141 % 10 = 1
So 454217-55-1 is a valid CAS Registry Number.

454217-55-1Relevant articles and documents

Three-component coupling reactions of thioformamides with organolithium and grignard reagents leading to formation of tertiary amines and a thiolating agent

Murai, Toshiaki,Asai, Fumio

, p. 780 - 781 (2007/10/03)

A highly efficient three-component coupling reaction between thioformamides and organolithium and Grignard reagents was developed. The generality of the process has been demonstrated by using various combinations of reactants and reagents. Information about the mechanism of the reaction has come from 1H and 13C NMR spectroscopic detection of the key intermediate. The LiS group in the intermediates generated by addition of the organolithium reagents to the thioformamides serves as a leaving group. The solid byproduct formed in these reactions, formulated as [LiSMgBr], can be used as a thiolating agent to transform acid chlorides into thioic acids and thioic acid anhydrides. Copyright

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