Under the following reaction conditions: temperature 50-70-degrees-C,
pressure 1.0-2.0 MPa, solvent C6D6, initiator AIBN, the reactions of 1
, 4-pentadiene, 1, 7-octadiene and 1-decaoctene with PH3 were studied
by using the pressurized in-situ NMR technique. Experimental results i
ndicated that the six-membered phosphorinane is formed by the addition
of PH3 to 1, 4-pentadiene, phosphonane can't be obtained by 1, 7-octa
diene, and primary phosphine is the predominant product in the reactio
n of PH3 with 1-decaoctene. The results obtained by in-situ (PNMR)-P-3
1 spectra also indicated that the reactions of PH3 with linear olefins
proceed with a sequential mechanism.