Results Z-Selective Horner-Wadsworth-Emmons Reac-tion of Ethyl (Diarylphosphono) acetate in the Presence of Amine. The HWE reaction of ethyl (diphenylphosphono) acetate 1a6d with 2-ethylhexanal in the presence of amine base was performed in order to establish the best reaction conditions (Table 1). Following the Masamune-Roush procedure, 2 1a in acetonitrile was treated with DBU in the presence of LiCl, followed by the addition of 2- ...
