Synthesis of pyrimido[4',5':4,5]thieno[2,3-c]pyridazine derivatives

被引:3
|
作者
Quintela, JM
Veiga, MC
AlvarezSarandes, R
Peinador, C
机构
[1] Depto. Quim. Fundamental e Indust., Facultad de Ciencias, Universidad de La Coruña
来源
MONATSHEFTE FUR CHEMIE | 1996年 / 127卷 / 05期
关键词
thieno[2,3-c]pyridazine-6-carboxamide; 5,6,7,8-tetrahydropyrimido[4',5':4,5]-thieno [2,3-c]pyridazines; 7,8-dihydropyrimido[4',5':4,5]thieno[2,3-c]pyridazines; pyrimido[4',5':4,5]thieno[2,3-c]pyridazines;
D O I
10.1007/BF00807079
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Convenient syntheses of 3,4-diphenyl-8-oxo-6-substituted-5,6,7,8-tetrahydropyrimido[4',5:4,5]thieno[2,3-c]pyridazines (4a-g), 3,4-diphenyl-8-oxo-6-substituted-7,8-dihydropyrimido [4',5':4,5]thieno [2,3-c]pyridazines (5a-g), 8-chloro-3,4-diphenyl-6-substituted-pyrimido[4',5':4,5] thieno [2,3-c]pyridazines (6a-g), and 3,4,6-triphenyl-8-substituted-pyrimido[4',5',4,5]thieno[2,3-c]pyridazines (7a-f) from 4-cyano-5,6-diphenylpyridazine-3(2H)-thione (1) via 5-amino-3,4-diphenylthieno [2,3-c] pyridazine-6-carboxamide (3) are reported.
引用
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页码:537 / 547
页数:11
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