117943-63-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117943-63-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,9,4 and 3 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 117943-63:
(8*1)+(7*1)+(6*7)+(5*9)+(4*4)+(3*3)+(2*6)+(1*3)=142
142 % 10 = 2
So 117943-63-2 is a valid CAS Registry Number.
117943-63-2Relevant academic research and scientific papers
CARBONYL ADDITION REACTION BY MEANS OF β-SILYL- AND β-STANNYLPHOSPHOROUS YLIDES: DIASTEREOSELECTIVE E-PROPENYLATION OF α-CHIRAL ALDEHYDES.
Tsukamoto, Masamitsu,Iio, Hideo,Tokoroyama, Takashi
, p. 4561 - 4564 (2007/10/02)
E-propenylation of aldehydes using β-silyl- or β-stannylphosphorous ylides is devised, and extended to the diastereoselective reaction of α-methyl and α-alkoxy aldehydes.
