Tetrabutylammonium Salt Induced Denitration of Nitropyridines: Synthesis of Fluoro-, Hydroxy-, and Methoxypyridines
作者:Scott D. Kuduk、Robert M. DiPardo、Mark G. Bock
DOI:10.1021/ol047688v
日期:2005.2.1
An efficient method for the synthesis of fluoropyridines via the fluorodenitration reaction is reported. The reaction is mediated by tetrabutylammoniumfluoride (TBAF) under mild conditions without undue regard to the presence of water. The fluorodenitration is general for 2- or 4-nitro-substituted pyridines, while 3-nitropyridines require attendant electron-withdrawing groups for the reaction to proceed