SYNTHESIS AND REACTIONS OF SOME NEW HETEROCYCLIC COMPOUNDS CONTAINING THIENO[2,3-<u>c</u>] PYRIDAZINE MOIETY
作者:Sh. M. Radwan
DOI:10.1080/10426500008046617
日期:2000.8.1
corresponding acid 2. Also, reaction of 1 with ethanolamine and formamide, respectively, gave compounds 5 and 6. Compound 2 reacts with orthophosphoric acid under different conditions to give some new thieno[2,3-c] pyridazine derivatives 3 and 4, which were subjected to reactions to produce compounds 7–18. Furtheremore, compounds 5 and 6 were used to synthesize some substituted pyrimid0[4′,5′:4,5]-thieno[2,3-c]pyridazine
摘要 3-氨基-4,5-二苯基噻吩并[2,3-c]哒嗪-2-羧酸乙酯(1)与氢氧化钠醇皂化,然后酸化,得到相应的酸2。此外,1与乙醇胺反应和甲酰胺分别得到化合物5和6。化合物2在不同条件下与正磷酸反应得到一些新的噻吩并[2,3-c]哒嗪衍生物3和4,它们进行反应生成化合物7-18。此外,化合物5和6用于合成一些取代的嘧啶0[4',5':4,5]-噻吩并[2,3-c]哒嗪衍生物21-30。