M. Abbari et al., ENE REACTIONS WITH P-CHLORO(BISTRIMETHYLS ILYL)METHYLENE PHOSPHINE, Bulletin des Societes chimiques belges, 104(2), 1995, pp. 109-116
P-Chloro(bistrimethylsilyl) methylene phosphine gives ene reactions wi
th simple alkenes and with alpha-ethylenic hydrazones. Aza Diels Alder
reactions are not observed with latter compounds but are possible whe
n the azadiene bears electro-donor substituants.