Several possible mechanisms are considered for the formation of triphenylene and substituted triphenylenes in aryne reactions involving organometallic compounds. A stepwise rather than a concerted mechanism is favoured both from previous evidence and from present work. In particular, we have synthesized 2,7-dimethyl-; 1,6,11- and 2,6,11-trimethyl-; 1,3,6,11- and 2,3,6,11-tetramethyl-; and 6,11-dim
考虑了在涉及有机
金属化合物的
芳烃反应中形成
联苯和取代
联苯的几种可能机理。既有证据也有目前的工作,都倾向于采用循序渐进而不是协调一致的机制。特别是,我们合成了2,7-二甲基-; 1,6,11-和2,6,11-三甲基-; 1,3,6,11-和2,3,6,11-四甲基-; 6,11-二甲基-2-甲氧基三亚苯基通过
联苯中间体。