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22041-27-6

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22041-27-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 22041-27-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,0,4 and 1 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 22041-27:
(7*2)+(6*2)+(5*0)+(4*4)+(3*1)+(2*2)+(1*7)=56
56 % 10 = 6
So 22041-27-6 is a valid CAS Registry Number.

22041-27-6Relevant articles and documents

Base-mediated reaction of quaternary ammonium salts with nitroarenes - Their useful functionalization via vicarious nucleophilic substitution (VNS)

Jonczyk, Andrzej,Kowalkowska, Anna

, p. 674 - 680 (2007/10/03)

Ammonium ylides generated from ammonium salt 1a-e with a base react with derivatives of 3-nitropyridine 2a-c and 2-nitrothiophene (3) to form products of vicarious nucleophilic substitution (VNS) 7, 8, or 9 respectively. The products of VNS 10, 11, or 12 are also produced from the corresponding ammonium salts, a base and 4-chloro-nitrobenzene (4), nitrobenzene (5), or 1-nitronaphthalene (6), respectively. In a few products, an exchange of alkoxy group 7c or substitution of chlorine by alkoxyl 8a,b occured.

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