Chimie des metalloles IV B. Action d'organolithiens sur les tetramethyl-1, 1, 3, 4 silole ou germole

J Dubac, H Iloughmane, A Laporterie, C Roques

Index: Dubac, Jacques; Iloughmane, Hafida; Laporterie, Andre; Roques, Christian Tetrahedron Letters, 1985 , vol. 26, # 10 p. 1315 - 1318

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Citation Number: 13

Abstract

Abstract The reaction of RLi (R= nBu, tBu, PhLi) with 1, 1, 3, 4-tetramethylsilole or germole in THF gives via a ligand exchange (S N-Si or Ge) the 1-R-1, 3, 4 trimethylmetalloles or the 1, 1- di-R-3, 4-dimethylmetalloles (A). Metalation of MMe groups is not observed but a partial (nBuLi, PhLi) or important (tBuli) isomerization of metalloles into the transoid exocyclic dienes (B) occurs.