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171414-22-5

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171414-22-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 171414-22-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,1,4,1 and 4 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 171414-22:
(8*1)+(7*7)+(6*1)+(5*4)+(4*1)+(3*4)+(2*2)+(1*2)=105
105 % 10 = 5
So 171414-22-5 is a valid CAS Registry Number.

171414-22-5Relevant articles and documents

2- and 4-Nitrobenzenesulfonamides: Exceptionally versatile means for preparation of secondary amines and protection of amines

Fukuyama, Tohru,Jow, Chung-Kuang,Cheung, Mui

, p. 6373 - 6374 (1995)

2- and 4-nitrobenzenesulfonamides, readily prepared from primary amines, undergo smooth alkylation by Mitsunobu reaction or by conventional methods to give N-alkylated sulfonamides in near quantitative yields. These sulfonamides could be deprotected readily via Meisenheimer complexes upon treatment with thiolates in DMF at room temperature, giving secondary amines in high yields.

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