112584-68-6Relevant articles and documents
Pyridazine Chemistry XXXIV: Synthesis of Novel Diaza Analogues of Acridone, Xanthone and Thioxanthone from 3,4-Disubstituted Pyridazines
Heinisch, Gottfried,Lassnigg, Doris
, p. 1222 - 1226 (2007/10/02)
Reactions of 3-chloropyridazine-4-carbonitrile 5 with arylamines, phenol or thiophenol, followed by PPA promoted cyclisation, provide acces to the new tricyclic systems pyridazinoquinolin-5(10H)-one, 5H-benzopyranopyridazin-5-one and 5H-