A concise regioselective synthesis of hydroxyazaisoindolinones and their conversion into pyridopyridazinones

被引:22
作者
Brzezinski, JZ
Bzowski, HB
Epsztajn, J
机构
[1] Department of Organic Chemistry, University of Łodz, 90-136 Łódź
关键词
D O I
10.1016/0040-4020(95)01109-9
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The synthesis of pyridopyridazinones 7 and 8 via the reaction of hydroxyazaisoindolinones 5 and 6 with hydrazine hydrate is described. Compounds 7 and 8 were then subjected to reactions with alkyl halides to furnish N-alkyl derivatives. Only in the reaction of pyridopyridazinone 8 with benzyl bromide was the O-benzylpyridopyridazine 14b formed in addition to the N-benzylpyridopyridazinone 14a.
引用
收藏
页码:3261 / 3272
页数:12
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