Acetic Anhydride → HCID 14822881, compound

Participants

Reaction Steps

[I; Ar 4-CH3CONHC6H4, R1 and R3 =H, R5 =CH3 ]was prepared from 1.73 g 6-(4-aminophenyl)-1,3-dihydro-5-methyl-2H-imidazo[4,5-b]pyridin-2-one hydrochloride and 0.65 ml acetic anhydride according to the procedure of Example 7, and was obtained in 90% yield as a colorless solid, m.p. above 300° C. when recrystallized from aqueous DMF.

Provenance & Evidence