The doubly homologated meso-octaethylporphyrinogen 1, containing two pyridine and two pyrrole rings in cis arrangements, allowed the synthesis of highly reactive vanadium(III) organometallics, via the intermediacy of 2, [Et8(m-MeC5H2N)(C5H3N)(C4H2N)2Li2(THF)2], and 3, [Et8(m-MeC5H2N)(C5H3N)(C4H2N)2V−Cl]. This latter complex has been converted to the corresponding [V−Me] derivative 4, [Et8(m-MeC5H2
含两个
吡啶和两个
吡咯环顺式排列的双同源介-
八乙基卟啉原1通过2的中间体[Et 8(m -MeC 5 H 2 N)( C 5 H 3 N)(C 4 H 2 N)2 Li 2(THF)2 ]和3,[Et 8(m -MeC 5 H 2 N)(C 5H 3 N)(C 4 H 2 N)2 V-Cl]。后者的络合物已转换为相应的[V-Me]衍
生物4 [Et 8(m -MeC 5 H 2 N)(C 5 H 3 N)(C 4 H 2 N)2 V-Me],进行简单的羰基化反应生成5,Et 6(m -MeC 5 H 2 N)(C 5 H 3 N)(C 4 H 2 N)2 V-OC(CEt2)(Me)]。中间η 2从而发现-酰基衍
生物显示一个不寻常的卡宾反应性插入的C-C键。