corresponding metal halogenides the 7-chloro-5-diazomethylbenzocycloheptatrienes 7a, b and 9a, b; isomers of type 6 are not formed. Copper(II)-acetylacetonate catalyzed thermolysis of the diazo compounds leads under ring enlargement to 8-chloro-6-phosphoryl(or carbonyl)-substituted benzocyclooctatetranes 10a-d. The X-ray structure analysis of 10a was carried out.
7,7-二
氯苯并
环庚三烯3与
金属化的重氮甲基化合物4a,b和8a,b的反应在消除相应的
金属卤化物的情况下产生了7-
氯-5-重氮甲基苯并环庚七烯7a,b和9a,b。没有形成类型6的异构体。重氮化合物的
铜(II)-
乙酰丙酮铜催化的热解在环扩大下导致生成8-
氯-6-
磷酰基(或羰基)取代的苯并环
辛酸酯10a - d。进行了10a的X射线结构分析。