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102235-85-8

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102235-85-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 102235-85-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,2,2,3 and 5 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 102235-85:
(8*1)+(7*0)+(6*2)+(5*2)+(4*3)+(3*5)+(2*8)+(1*5)=78
78 % 10 = 8
So 102235-85-8 is a valid CAS Registry Number.

102235-85-8Relevant articles and documents

Cycloadditions, 7. Intramolecular Diels-Alder Reactions of Allenecarboxanilides; Variation of the Substituents in the p-Position of the Aniline Nucleus

Diehl, Klaus,Himbert, Gerhard,Henn, Lothar

, p. 2430 - 2443 (2007/10/02)

The N-methyl-1,2-propadiene-1-carboxanilides 6a-h, differently substituted in the p-position, are synthesized by Wittig reaction of the carbamoylmethylenephosphoranes 5 with ketene.They isomerize by thermolysis in boiling xylene to give the tricycles 7a-h, the products of the intramolecular Diels-Alder reaction, and in some cases also to the quinolones 9, the products of a cyclization reaction.The order of the reaction and the influence of the substituents upon the rate of the intramolecular Diels -Alder reaction are determined by 1H-NMR spectroscopy.

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