73193-55-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73193-55-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,1,9 and 3 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 73193-55:
(7*7)+(6*3)+(5*1)+(4*9)+(3*3)+(2*5)+(1*5)=132
132 % 10 = 2
So 73193-55-2 is a valid CAS Registry Number.
73193-55-2Relevant academic research and scientific papers
β-Ketoester Dianions as Regiospecific Enolate Equivalents for N-Substituted Pyrrolidin-3-ones
Giles, Melvyn,Hadley, Michael S.,Gallagher, Timothy
, p. 1047 - 1048 (2007/10/02)
Double deprotonation of β-ketoester (6) gives dianion (7) which serves as a synthetic equivalent of the regiospecific ketone enolate (3), providing a synthetic entry to 2-substituted pyrrolidin-3-ones (9) and (10).
