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1622221-54-8

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1622221-54-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1622221-54-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,2,2,2,2 and 1 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1622221-54:
(9*1)+(8*6)+(7*2)+(6*2)+(5*2)+(4*2)+(3*1)+(2*5)+(1*4)=118
118 % 10 = 8
So 1622221-54-8 is a valid CAS Registry Number.

1622221-54-8Downstream Products

1622221-54-8Relevant articles and documents

Copper-catalyzed aerobic oxidative N-S bond functionalization for C-S bond formation: Regio- and stereoselective synthesis of sulfones and thioethers

Li, Xianwei,Xu, Yanli,Wu, Wanqing,Jiang, Chang,Qi, Chaorong,Jiang, Huanfeng

, p. 7911 - 7915 (2014)

A regio- and stereoselective synthesis of sulfones and thioethers by means of CuI-catalyzed aerobic oxidative N-S bond cleavage of sulfonyl hydrazides, followed by cross-coupling reactions with alkenes and aromatic compounds to form the C-sp-2-S bond, is described herein. N2 and H2O are the byproducts of this transformation, thus offering an environmentally benign process with a wide range of potential applications in organic synthesis and medicinal chemistry. First cleave, then cross-couple: A direct Cu-catalyzed aerobic oxidative C-sp-2-H functionalization and C-S bond coupling reaction has been developed (see scheme). By slight modification of the additive, sulfonyl hydrazides could serve as sulfonation, sulfenation, or arylation reagents to undergo cross-coupling reactions with alkenes and (hetero)aromatic cycles, affording sulfones, thioethers, and biaryl compounds with high regio- and stereoselectivities (see scheme).

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