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757937-93-2

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757937-93-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 757937-93-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,5,7,9,3 and 7 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 757937-93:
(8*7)+(7*5)+(6*7)+(5*9)+(4*3)+(3*7)+(2*9)+(1*3)=232
232 % 10 = 2
So 757937-93-2 is a valid CAS Registry Number.

757937-93-2Upstream product

757937-93-2Relevant articles and documents

Tert-Butyl Nitrite Promoted Oxidative Intermolecular Sulfonamination of Alkynes to Synthesize Substituted Sulfonyl Pyrroles from the Alkynylamines and Sulfinic Acids

Qi, Zhenjie,Jiang, Yong,Wang, Yanyan,Yan, Rulong

, p. 8636 - 8644 (2018)

tert-Butyl nitrite promoted oxidative intermolecular sulfonamination of alkynes to synthesize substituted sulfonyl pyrroles from the alkynylamines and sulfinic acids via tandem addition/cyclization was developed. This reaction is performed well by employing tert-butyl nitrite as the oxidant, and various substituted sulfonyl pyrroles are formed in moderate to good yields with no requirement of metal catalysis.

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