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54883-79-3

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54883-79-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 54883-79-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,8,8 and 3 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 54883-79:
(7*5)+(6*4)+(5*8)+(4*8)+(3*3)+(2*7)+(1*9)=163
163 % 10 = 3
So 54883-79-3 is a valid CAS Registry Number.

54883-79-3Relevant articles and documents

ACCES AUX DINITRO-2,4 DIARYLAMINES PAR SUBSTITUTION NUCLEOPHILE SNAr-LIMITES DE LA REACTION ET APPLICATION A LA SYNTHESE DE CYANOCARBAZOLES

Henichart, J. P.,Bernier J. L.,Vaccher, C.,Houssin, R.,Warin, V.,Baert, F.

, p. 3535 - 3542 (2007/10/02)

3-Cyanocarbazoles, key-intermediates in the total synthesis of pyrido carbazoles, have been obtained starting from easily available materials and involving the cyclization of diarylamines.The first step of the preparation consists in a SNAr reaction between a para substituted aniline and a chloro- (or bromo)-dinitrobenzene.This nucleophilic substitution has been found to be hindered by the steric effect of a methyl group, explained in terms of inhibition of resonance and confirmed by X-ray determination.

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