146953-87-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 146953-87-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,6,9,5 and 3 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 146953-87:
(8*1)+(7*4)+(6*6)+(5*9)+(4*5)+(3*3)+(2*8)+(1*7)=169
169 % 10 = 9
So 146953-87-9 is a valid CAS Registry Number.
146953-87-9Relevant articles and documents
Novel synthesis of N-unsubstituted imidazoles using N-trimethylsilylimines
Shih
, p. 595 - 598 (1993)
Cycloaddition of N-trimethylsilylimines 3 with the lithiotosylmethylisocyanates 4 is described. This provides a novel synthesis of 4-substituted and 4,5-disubstituted imidazoles from easily accessible aldehydes or organolithium reagents, under mild conditions and in a one-pot operation.