作者:Katalin Molnár、László Takács、Mihály Kádár、Ferenc Faigl、Zsuzsanna Kardos
DOI:10.1080/00397911.2017.1319487
日期:2017.7.3
In the present work, we determined and evaluated the stereochemical outcome of the Horner-Wadsworth-Emmons (HWE) reaction of 2-oxoalkylphosphonates with different ester functions (bis(2,2,2-trifluoroethyl), 2,2,2-trifluoroethyl methyl, dimethyl) and side chains (aliphatic, aromatic) with three different aldehydes (benzaldehyde, THP- and PPB-protected Corey aldehydes) under two reaction conditions. The trans protocol is generally used in the E-selective HWE reactions, while cis protocol promotes the Z-selectivity.[GRAPHICS].