α-Monofluoroalkanoic acids are important intermediates in the synthesis of biologically active fluorine compounds. General methods of preparation have been examined, based on the three following reagents: (a) hydrogen fluoride + N-bromoacetamide; (b) diethyl monofluoromalonate; and (c) perchlorylfluoride. The first of these is the recommended procedure for simple unsubstituted α-fluoro acids; however, the
A Convenient Synthesis of α-Fluoro Carboxylic Acids
作者:James E. Oliver、Rolland M. Waters、William R. Lusby
DOI:10.1055/s-1994-25457
日期:——
Conditions have been developed whereby treatment of 1,1,1-trichloro-2-carbinols with tetrabutylammonium fluoride and cesium fluoride provides 2-fluoro carboxylic acids. The methodology was used to prepare fluoro derivatives of two fatty acids and of the pheromone of the European corn borer.