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110890-31-8

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110890-31-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 110890-31-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,0,8,9 and 0 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 110890-31:
(8*1)+(7*1)+(6*0)+(5*8)+(4*9)+(3*0)+(2*3)+(1*1)=98
98 % 10 = 8
So 110890-31-8 is a valid CAS Registry Number.

110890-31-8Relevant articles and documents

Stereoselective Synthesis of 1,4-Disubstituted 1,3-Diene from Aldehyde Using Organotitanium Reagent

Ikeda, Yoshihiko,Ukai, Junzo,Ikeda, Nobuo,Yamamoto, Hisashi

, p. 731 - 742 (2007/10/02)

Organotitanium reagent generated from 1-t-butylthio-3-trimethylsilyl-1-propene condenses with aldehydes to give 1-t-butylthio-(E,Z)-1,3-alkadienes in a single step via (E)-erythro-β-hydroxysilane in a highly regio- and stereoselective manner. 1,4-Dialkyl-1,3-diene is obtained from the diene sulfide by crosscoupling reaction with Grignard reagent in the presence of nickel catalyst.The utility of the method is illustrated by application to the synthesis of Spilanthol, a naturally occurring insecticide from Spilanthese olerancae in five steps.

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