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57705-21-2

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57705-21-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 57705-21-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,7,0 and 5 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 57705-21:
(7*5)+(6*7)+(5*7)+(4*0)+(3*5)+(2*2)+(1*1)=132
132 % 10 = 2
So 57705-21-2 is a valid CAS Registry Number.

57705-21-2Downstream Products

57705-21-2Relevant articles and documents

Copper-catalyzed oxidative synthesis of 2-oxo-acetamidines from one-pot three-component reaction of aryl methyl ketones, secondary amines and anilines

Dutta, Leema,Bhuyan, Pulak J.

, p. 5770 - 5778 (2018)

Some novel 2-oxo-acetamidines were synthesized via one-pot three-component reaction of acetophenones, secondary amines and anilines in presence of CuI as catalyst. The reaction involved in a oxidation process of C (sp3)–H bonds of acetophenones

A copper iodide-catalyzed coupling reaction of benzofuran-3(2H)-ones with amines: an approach to α-ketoamides

Chen, Rongxiang,Dai, Wei,Jia, Ruo-Ling,Li, Wenbo,Ma, Xueji,Sun, Aili,Wang, Kai-Kai,Wang, Zhan-Yong,Zhao, Wei

supporting information, p. 5294 - 5297 (2021/06/30)

A CuI-catalyzed coupling reaction of benzofuran-3(2H)-ones with amines has been well established for the direct synthesis of α-ketoamides. This process involves C-O bond cleavage and CO/C-N bond formation. Mechanism studies indicated that this α-ketoamide formation reaction may involve a free radical process.

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