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154234-94-3

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154234-94-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 154234-94-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,4,2,3 and 4 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 154234-94:
(8*1)+(7*5)+(6*4)+(5*2)+(4*3)+(3*4)+(2*9)+(1*4)=123
123 % 10 = 3
So 154234-94-3 is a valid CAS Registry Number.

154234-94-3Downstream Products

154234-94-3Relevant articles and documents

Metal-Free C-N or C-C Bond Cleavages of α-Azido Ketones: An Oxidative-Amidation Strategy for the Synthesis of α-Ketothioamides and Amides

Yu, Pei,Wang, Yuwei,Zeng, Zhigang,Chen, Yunfeng

, p. 14883 - 14891 (2019/11/11)

A novel metal-free oxidative-amidation strategy for the synthesis of α-ketothioamides and amides from α-azido ketones was developed. The C-H bond thionation of α-azido ketones with elemental sulfur could form α-ketothioacyl azide, which was then nucleophilically attacked by amines, causing the cleavage of the C-N bond to afford α-ketothioamides, while amides could be formed with the release of nitrogen gas and cyano anion in the presence of PhI(OAc)2 by selective C-C bond cleavage.

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