40851-87-4 Usage
Uses
5-Amino-1,3-dihydro-2h-imidazo[4,5-b]pyridin-2-one is a reactant in the synthesis of imidazo[4,?5-?b]?- and -?[4,?5-?c]?pyridines.
Check Digit Verification of cas no
The CAS Registry Mumber 40851-87-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,8,5 and 1 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 40851-87:
(7*4)+(6*0)+(5*8)+(4*5)+(3*1)+(2*8)+(1*7)=114
114 % 10 = 4
So 40851-87-4 is a valid CAS Registry Number.
40851-87-4Relevant articles and documents
Synthesis of 1-(1,3-dialkyl-2-oxo-2,3-dihydro-1H-imidazo-[4,5-b]pyridin-5- yl)-5-oxopyrrolidine-3-carboxylic acids
Smolyar,Troyan,Vasilechko,Lomov
, p. 1706 - 1709 (2008/09/18)
Nitration of 2,3-dihydro-1H-imidazo[4,5-b]pyridin-2-one gave its 5-nitro derivative which was subjected to alkylation with dimethyl sulfate, diethyl sulfate, and benzyl(dimethyl)phenylammonium chloride. The resulting 1,3-dimethyl-, 1,3-diethyl-, and 1,3-d