Direct α-Fluorination of Ketones Using N-F Reagents
作者:Stojan Stavber、Marjan Jereb、Marko Zupan
DOI:10.1055/s-2002-35625
日期:——
bis(tetrafluoroborate) (Accufluor NFTh) as a fluorine atom transfer reagent and methanol as solvent enabled direct regiospecific fluorofunctionalization of the u-carbonyl position in ketones without prior activation of the target molecules. Methoxy or hydroxy substituted derivatives of 1-indanone, 1-tetralone and oxo derivatives of thiophene, benzo[b]thiophene, benzofuran and benzopyran were regiospecifically
A p-toluenesulfonic acid catalyzed fluorination of α-branched ketones for the construction of fluorinated quaternary carbon centers has been developed, featuring a broad substrate scope, environmentally benign reaction conditions, and operational simplicity.