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694525-13-8

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694525-13-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 694525-13-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,4,5,2 and 5 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 694525-13:
(8*6)+(7*9)+(6*4)+(5*5)+(4*2)+(3*5)+(2*1)+(1*3)=188
188 % 10 = 8
So 694525-13-8 is a valid CAS Registry Number.

694525-13-8Downstream Products

694525-13-8Relevant articles and documents

Straightforward reductive esterification of carbonyl compounds with carboxylic acids through tosylhydrazone intermediates

Garcia-Munoz, Angel-Humberto,Tomas-Gamasa, Maria,Perez-Aguilar, M. Carmen,Cuevas-Yanez, Erick,Valdes, Carlos

, p. 3925 - 3928 (2012/08/28)

The reaction of carboxylic acids with tosylhydrazones in basic media gives rise to the corresponding esters through an O-H insertion reaction in the in situ generated diazo compound. The process is operationally very simple, catalyst free, and very general with regard to the structure of both coupling partners. In particular, the esterification can be accomplished by employing tosylhydrazones derived from enolizable carbonyl compounds. Considering the ready availability of tosylhydrazones from carbonyl compounds, this reaction can be visualized as a reductive esterification of carbonyl compounds.

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