In-situ NMR Study on the Reactions of Olefins with Phosphine: Synthesis of Organophosphorous Compounds Containing Oxygen

Under the following reaction conditions:temperature 75～80℃, pressure 1.0～2.0 MPa, solventC₆D₆, initiator AIBN, the reactions of undecyclenic acid, 6-methyl-5-heptene-2-one, vinylacetic ester, oleic acid and linoeic acid with PH₃ were studied by using the pressurized in-situ NMR technique Expermental results indicated that the primary, secondary, and tertiary phosphine compounds were obtained in the reactions of PH₃ with three olefins except oleic acid and linoleic acid The results from in-situ ³¹P NMR spectra also indicated that the reactions proceed with a sequential mechanism.