Asymmetric Electrophilic Fluorocyclization with Carbon Nucleophiles
作者:Jamie R. Wolstenhulme、Jessica Rosenqvist、Oscar Lozano、John Ilupeju、Nathalie Wurz、Keary M. Engle、George W. Pidgeon、Peter R. Moore、Graham Sandford、Véronique Gouverneur
DOI:10.1002/anie.201304845
日期:2013.9.9
helical‐shaped fluorinated tetracyclic molecules were prepared by fluorocarbocyclization of prochiral alkenes. The development of a new class of chiral Selectfluor (1) proved instrumental in developing an asymmetric variant of this transformation. These novel chiral N‐F reagents are readily accessible by fluorine transfer from shelf‐stable N‐fluoropyridinium salts.
This invention relates to fluorinating agents and, more particularly, to chiral non-racemic fluorinating agents useful for enantioselective fluorination, as well as to their synthesis and use and other subject matter. The fluorinating agents are based on a substituted 1,4-diazabicyclo[2.2.2]octane (DABCO) skeleton and provide electrophillic fluorine enantioselectively.