A Peptide-Embedded Trifluoromethyl Ketone Catalyst for Enantioselective Epoxidation
作者:David K. Romney、Scott J. Miller
DOI:10.1021/ol3000712
日期:2012.2.17
The development of peptide-based oxidation catalysts that use a transiently generated dioxirane as the chemically active species is reported. The active catalyst is a chiral trifluoromethyl ketone (Tfk) with a pendant carboxylic acid that can be readily incorporated into a peptide. These peptides were capable of epoxidizing alkenes in high yield (up to 89%) and enantiomeric ratios (er) ranging from 69.0:31.0 to 91.0:9.0, depending on the alkene substitution pattern.