121897-57-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121897-57-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,8,9 and 7 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 121897-57:
(8*1)+(7*2)+(6*1)+(5*8)+(4*9)+(3*7)+(2*5)+(1*7)=142
142 % 10 = 2
So 121897-57-2 is a valid CAS Registry Number.
121897-57-2Relevant articles and documents
Reactions of 2-Vinylindoles with Carbodienophiles: Synthetic and Mechanistic Aspects
Eitel, Manfred,Pindur, Ulf
, p. 5368 - 5374 (2007/10/02)
Reactions of selectively functionalized 2-vinylindoles with acyclic and cyclic carbodienophiles proceed with high regio- and/or stereoselectivities to furnish Diels-Alder adducts, Diels-Alder ene products, and Michael adducts.This methodology provides a c
