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126314-33-8

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126314-33-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 126314-33-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,6,3,1 and 4 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 126314-33:
(8*1)+(7*2)+(6*6)+(5*3)+(4*1)+(3*4)+(2*3)+(1*3)=98
98 % 10 = 8
So 126314-33-8 is a valid CAS Registry Number.

126314-33-8Relevant articles and documents

The Willgerodt-Kindler Reactions. 6. Isomerization of the Carbonyl Group in Alkanones and Cycloalkanones

Carmack, Marvin,Behforouz, Mohammad,Berchtold, Glenn A.,Berkowitz, Samuel M.,Wiesler, Donald,Barone, Ralph

, p. 1305 - 1318 (2007/10/02)

The most unusual feature of the Willgerodt-Kindler Reactions is the facile isomerization of the carbonyl function along a chain of unbranched methylene groups, or around a cycloaliphatic ring containing several connected methylene groups.We have demonstrated that the first step in the Kindler process is the formation of enamines by reaction of the carbonyl function with secondary aliphatic amines, followed by reaction of the enamine with certain sulfur-amine catalysts to form reactive heterocyclic sulfur intermediates that facilitate the elimination-readdition of the amines reversibly along the chain.It was shown that compounds of the type R2N-S-S-NR2 are effective catalysts but not compounds of the type R2N-S-NR2.Some cyclohexanone derivatives undergo aromatization, with anomalous results in certain cases.

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