Metal-halogen exchange of bromo-substituted trialkylsilyl phenols, to a less extent thiophenols, but not anilines, A,+ 5 triggers an anionic 0+ C 1, 3-silyl rearrangement to produce corresponding aromatic ring silylated derivatives A (S&em&). I Evidence from crossover experiments onA (X= 0) indicates an intramolecular mechanism for oa-bromo and an intermolecular pathway for the corresponding para-bromo trialkylphenoxysilanes. 2 We ...
