2-Phenyl-1-methylenecyclopropane and 2,2-diphenyl-1-methylenecyclopropane react with MH(CO)(PPh3)3 (M = Rh, Ir) to produce 1,3-dienes or the intermediate Rh and Ir complexes having a 3-butenyl ligand, depending on the conditions. The structures and chemical properties of the obtained complexes suggest plausible pathways for the ring-opening isomerization of the methylenecyclopropanes to the corresponding dienes.
2-苯基-1-
亚甲基环丙烷和2,2
-二苯基-1-
亚甲基环丙烷与
MH(CO)(PPh 3)3(M = Rh,Ir)反应生成1,3-二烯或中间体Rh和Ir配合物3-
丁烯基
配体,取决于条件。所获得的配合物的结构和
化学性质表明了
亚甲基环丙烷向相应的二烯的开环异构化的合理途径。