A Convenient Enantioselective Synthesis of (<i>S</i>)-α-Trifluoromethylisoserine
作者:Alberto Avenoza、Jesús H. Busto、Gonzalo Jiménez-Osés、Jesús M. Peregrina
DOI:10.1021/jo0505371
日期:2005.7.1
This report describes two straightforward synthetic methodologies to obtain α-CF3-isoserine, a new α,α-disubstituted β-amino acid, from α-(trifluoromethyl)acrylic acid. The routes involve the synthesis of five-membered cyclic sulfates (using sulfuryl chloride) or sulfamidates (using the Burgess reagent) from the corresponding chiral diols, which are obtained by a catalytic asymmetric dihydroxylation