γ-ketophosphonates: Synthesis and 1H, 31P and 13C NMR study
Written by sctunisie no commentsγ-ketophosphonates 1a and 1b have been prepared. We have confirmed that the mechanism of the reaction leading to ketones 1b involves the formation of an oxaphosphorane intermediate. The application of two dimentional homonuclear 1H NMR to compounds 1a indicate a 5JHH coupling interaction, probably via a non-bond mechanism. A conformational approach for ketones 1a and 1b has been proposed on the basis of 3JCP coupling constants.
S. Touil, E. Kremp, B. Baccar, H. Zantour
Pages 85-95
