107971-40-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 107971-40-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,7,9,7 and 1 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 107971-40:
(8*1)+(7*0)+(6*7)+(5*9)+(4*7)+(3*1)+(2*4)+(1*0)=134
134 % 10 = 4
So 107971-40-4 is a valid CAS Registry Number.
107971-40-4Relevant articles and documents
ADDITION OF GRIGNARD REAGENTS TO 1-ACYL-4-METHOXYPYRIDINIUM SALTS. AN APPROACH TO THE SYNTHESIS OF QUINOLIZIDINONES.
Comins, Daniel L.,Brown, Jack D.
, p. 4549 - 4552 (2007/10/02)
The addition of Grignard reagents to 1-acyl-4-methoxypyridinium salts gives 2-substituted 1-acyl-2,3-dihydropyridones.This reaction was utilized to synthesize (+/-)-epi-myrtine and trans-4-phenylquinolizidin-2-one.
