［2，3＇－联－1H－吲哚］－3（2H）－酮衍生物的热解反应

Ihermolysis of [2,3' - Bi - 1H - Indol]- 3(2H)- Ones

研究了四种标题物（１ａ－１ｄ）在２５０℃下的热化学行为，发现１ａ和１ｂ均可发生热解反应给出２－苯基－３Ｈ－吲哚－３－酮（２）和２－苯基蚓哚（３），而１Ｃ和１ｄ则不发生显著的热解反应．同时还发现，在２００℃条件下，２可与３ａ顺利地发生热加成反应生成１ａ，同样条件下，２与３ｂ不发生反应．实验结果表明，标题物１ａ的热解为可逆反应，而２ｂ的热解为不可逆反应，对上述热解反应机理进行了探讨．

he thermochemical behaviors of four of the title compounds (1a-1d) at 250℃ were studied.It was foun that both la and fo underwent facile thermal decomposition leading to 2 Phenyl -3H - indol - 3 - one (2) and 2 - Pheuyl indoles (3),but no similar reactions of 1c and 1d were observed.Subsequent experiments showed that 2 reacted smoothly with 3a to give 1b at 200℃, whereas the similar thermal addition of 2 with 3b did not occur.Thase observations revealed that the thermolysis of 1a was reversible,but that of 1b was irreversible.The reaction methanismswere also discussed.