133219-06-4Relevant articles and documents
PYRIDAZINES CONDENSED WITH A HETERO RING, IV FORMATION OF PYRAZINOPYRIDAZINE SKELETONS BY CYCLOCONDENSATION OF 4,5-DIAMINO- AND 3,4,5-TRI-AMINOPYRIDAZINONES
Koermendy, Karoly,Ruff, Ferenc
, p. 587 - 599 (2007/10/02)
The cyclocondensation of 4,5-diamino- (3a, b; 5a - c) and 3,4,5-triaminopyridazinones (7a - c; 10a - c) with α-dioxo compounds in Methyl Cellosolve solution, which is a slow process, is significantly speeded up in glacial acetic acid owing to proton catal