Action du n-butyllithium sur les bromo-3 halogeno-2 pyridines fluoree, chloree et bromee
作者:M. Mallet、G. Quéguiner
DOI:10.1016/s0040-4020(01)96696-7
日期:1985.1
Apart from the common bromine-lithiumexchange reaction in brominated aromatic compounds, it is possible to obtain a lithio-derivative quite different from the one usually described in such a reaction. This new reaction, which results from a special experimental conditions is called ·homotransmetalation”, and it occurs when using n-butyllithium and 3-bromo 2-halogenopyridines (1). Different behaviour