(major) and the corresponding 2-halogenophenyldiphenylphosphine oxide. No trace of furan–dehydrobenzene adduct was observed in these reactions; however, 1- and 2-naphthyldiphenylphosphine oxides (9:4) were detected. These compounds were the major products from the reaction of the furan–dehydrobenzene adduct with diphenylphosphide, although the ratio of 1- to 2-isomers was quite different (1:9) in this
1,2-二卤代苯在
呋喃的存在下与两个摩尔当量的二苯基
磷化
锂反应,氧化后得到
三苯基氧化膦(主要)和相应的2-卤代苯基
二苯基膦氧化物。在这些反应中没有观察到
呋喃-脱氢苯加合物的痕迹。然而,检测到1-和2-
萘基
二苯基膦氧化物(9:4)。这些化合物是
呋喃-脱氢苯加合物与二苯基
磷化物反应的主要产物,尽管在这种情况下1对2异构体的比例差异很大(1:9)。