Enantioselective α-Trifluoromethylation of Aldehydes via Photoredox Organocatalysis
摘要:
The first enantioselective, organocatalytic alpha-trifluoromethytation and alpha-perfluoroalkylation of aldehydes have been accomplished using a readily available iridium photocatalyst and a chiral imidazolidinone catalyst. A range of alpha-trifluoromethyl and alpha-perfluoroalkyl aldehydes were obtained from commercially available perfluoroalkyl halides with high efficiency and enantioselectivity. The resulting alpha-trifluoromethyl aldehydes were subsequently shown to be versatile precursors for the construction of a variety of enantioenriched trifluoromethylated building blocks.
Enantioselective α-Trifluoromethylation of Aldehydes via Photoredox Organocatalysis
摘要:
The first enantioselective, organocatalytic alpha-trifluoromethytation and alpha-perfluoroalkylation of aldehydes have been accomplished using a readily available iridium photocatalyst and a chiral imidazolidinone catalyst. A range of alpha-trifluoromethyl and alpha-perfluoroalkyl aldehydes were obtained from commercially available perfluoroalkyl halides with high efficiency and enantioselectivity. The resulting alpha-trifluoromethyl aldehydes were subsequently shown to be versatile precursors for the construction of a variety of enantioenriched trifluoromethylated building blocks.
Enantioselective α-Trifluoromethylation of Aldehydes via Photoredox Organocatalysis
作者:David A. Nagib、Mark E. Scott、David W. C. MacMillan
DOI:10.1021/ja9053338
日期:2009.8.12
The first enantioselective, organocatalytic alpha-trifluoromethytation and alpha-perfluoroalkylation of aldehydes have been accomplished using a readily available iridium photocatalyst and a chiral imidazolidinone catalyst. A range of alpha-trifluoromethyl and alpha-perfluoroalkyl aldehydes were obtained from commercially available perfluoroalkyl halides with high efficiency and enantioselectivity. The resulting alpha-trifluoromethyl aldehydes were subsequently shown to be versatile precursors for the construction of a variety of enantioenriched trifluoromethylated building blocks.