62269-33-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 62269-33-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,2,2,6 and 9 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 62269-33:
(7*6)+(6*2)+(5*2)+(4*6)+(3*9)+(2*3)+(1*3)=124
124 % 10 = 4
So 62269-33-4 is a valid CAS Registry Number.
62269-33-4Relevant articles and documents
Zinc promoted addition of methyl 2,2-dihalocarboxylates to carbonyl compounds
Benincasa, Marta,Forti, Luca,Ghelfi, Franco,Libertini, Emanuela,Pagnoni, Ugo M.
, p. 4113 - 4122 (2007/10/03)
Methyl 2,2-dihalocarboxylates add easily to carbonyl compounds in fair to good yields through the intermediate formation of 2-haloester enolates; the reaction is promoted by zinc, following a "Barbier" type procedure.
