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5955-87-3

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5955-87-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5955-87-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,9,5 and 5 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 5955-87:
(6*5)+(5*9)+(4*5)+(3*5)+(2*8)+(1*7)=133
133 % 10 = 3
So 5955-87-3 is a valid CAS Registry Number.

5955-87-3Downstream Products

5955-87-3Relevant 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)

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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