Pyrrolyl compounds of main group elements. Synthesis of group 14 5-metallated pyrrole-2-carbaldehydes

F Denat, H Gaspard-Iloughmane, J Dubac

文献索引：Denat, Franck; Gaspard-Iloughmane, Hafida; Dubac, Jacques Journal of Organometallic Chemistry, 1992 , vol. 423, # 2 p. 173 - 182

全文：HTML全文

被引用次数: 18

摘要

Abstract New group 14 5-metallated pyrrole-2-carbaldehydes 5-R 3 E (C 4 H 2 NR′) CHO (E Si, Ge, Sn; R Me, Et, n Bu; R′ H, Me) have been regiospecifically prepared from corresponding pyrrole-2-carbaldehydes by either (i) 5-lithiation after protection of the aldehyde function by treatment with lithium N-methylpiperazide or by formation of an azafulvene dimer or (ii) metallation by R 3 EX (X Cl, Br). The 5-silylated compound (E ...