… In fact, the standard procedure described below has been used for some time in our
laboratories in order to achieve successful olefinations by HWE-reactions that involve either a
base-sensitive substrate or reagent. … While the structural formulation of these complexes, as
noted above, obviously requires further elaborate work, the spectral data evidently shows that
the lithium Salt plays a unique role in this modified Horner-Wadsworth-Emmons reaction. '* …