The tricarbonylchromium complex of cyclopropa[b]naphthalene (3a) is deprotonated at C(1) with BuLi. Quenching of the resulting anion with Mel results in a 1:1 mixture of stereoisomeric methyl derivatives 6a and 6b. Peterson olefination of the bis-silylated complex 3b affords the complexed alkylidenecycloproparene 5 in low yield. The tricarbonylchromium complex of cyclopropa[b]anthracene (10) is accessible
环丙基[ b ]
萘(3a)的三羰基
铬配合物在Bu(C)在C(1)处去质子化。将所得阴离子用Mel淬灭,得到立体异构甲基衍
生物6a和6b的1:1混合物。双甲
硅烷基化的配合物3b的彼得森烯化以低收率提供了配合物的亚烷基
环戊烯5。
环丙烷[ b ]
蒽(10)的三羰基
铬配合物可通过9的双氢脱甲
硅烷基化获得。还报道了它的X射线结构。尝试合成苯并环
丙烯的三羰基
铬配合物(11a)失败。