this new tetracyclic pyridazinone from 2-benzyl-5-(2-aminophenyl)-4-phenylpyridazin-3(2H)-one via a Pschorr type reaction was also investigated. Similarly, the construction of 2-methyldibenzo[f,h]cinnolin-3(2H)-one from 2-methyl-5-(2-bromophenyl)-6-phenylpyridazin-3(2H)-one and 2-methyl-5-(2-aminophenyl)-6-phenylpyridazin-3(2H)-one is also reported. Removal of the N-benzyl protective group of 2-benzyl-dibenzo[f
钯催化的2-苄基-5-(2-
溴苯基)-4-苯基
哒嗪-3(2 H)-1的分子内芳基化反应产生了迄今未知的2-苄基二苯并[f,h]
酞菁-1(2 H)-1 。还研究了通过Pschorr型反应从2-苄基-5-(2-
氨基苯基)-4-苯基
哒嗪-3(2 H)-one合成这种新的四环
哒嗪酮。类似地,2-甲基二苯并[f,h]肉-3(2的结构ħ) -酮由2-甲基-5-(2-
溴苯基)-6-苯基
哒嗪-3(2 H ^) -酮和2-甲基还报道了-5-(2-
氨基苯基)-6-苯基
哒嗪-3(2 H)-one。用AlCl去除2-苄基-二苯并[f,h]
酞嗪-1(2 H)-one的N-苄基保护基3得到未取代的二苯并[f,h]
酞嗪-1(2H)-1 。