Reaction of F-alkanoic acid chlorides with trialkyl phosphites leading to 1-(dialkoxyphosphinyl)oxy-f-1-alkenephosphonates or 1-(dialkoxyphosphinyl)oxy-1H-F-alkanephosphonates
F-Alkanoic acid chlorides exothermically reacted with 2 equivalents of trialkylphosphite without solvent at −20 °C to ambient temperature to give the corresponding dialkyl (Z)-1- (dialkoxyphosphinyl)oxy-F-1-alkenephosphonate in high yields. When the reaction was conducted at −78 °C in an ethereal solvent, dialkyl 1-(dialkoxyphosphinyl)oxy-1H-F-alkanephosphonate was obtained exclusively in place of
New organocuprate-induced reduction of the enol phosphate moiety in 1-[(diethoxyphosphinyl)oxy]-F-1-alkene-1-phosphonates: an efficient synthesis of (Z)-1-hydro-F-1-alkene-1-phosphonates