triphenylphosphine in benzene Kinetics; at 56°C and at various concentrations of P(C6H5)3; elem. anal.;

iodine at 25°C;

in benzene-d6 byproducts: propene, cyclopropane; heating in a sealed NMR tube to 100°C for 20 h; NMR monitoring; not isolated, detected by IR, MNR;