Highly Stereoselective Anti S<sub>N</sub>2‘ Substitutions of (<i>Z</i>)-Allylic Pentafluorobenzoates with Polyfunctionalized Zinc−Copper Reagents
作者:Nicole Harrington-Frost、Helena Leuser、M. Isabel Calaza、Florian F. Kneisel、Paul Knochel
DOI:10.1021/ol034525i
日期:2003.6.1
[GRAPHICS]Allylic substitution reactions of zinc-copper organometallics on (Z)-allylic pentafluorobenzoates proceed with very high regioselectivity and excellent anti selectivity. The high fidelity in transfer of stereochemical information allowed a short synthesis of (+)-ibuprofen (97% ee).