A combination of directing groups and chiral anion phase-transfer catalysis for enantioselective fluorination of alkenes
作者:Jeffrey Wu、Yi-Ming Wang、Amela Drljevic、Vivek Rauniyar、Robert J. Phipps、F. Dean Toste
DOI:10.1073/pnas.1304346110
日期:2013.8.20
electrophilic fluorination of alkenes to form tertiary and quaternary C(sp3)-F bonds and generate beta-amino- and beta-aryl-allylic fluorides. The reaction takes advantage of the ability of chiral phosphate anions to serve as solid-liquid phase transfer catalysts and hydrogen bond with directing groups on the substrate. A variety of heterocyclic, carbocyclic, and acyclic alkenes react with good to excellent