Cz. Li et Cy. Yuan, STUDIES ON ORGANOPHOSPHORUS COMPOUNDS 81 - A NOVEL SYNTHETIC APPROACHTO SUBSTITUTED CYCLOPENTANE-1,1-DIYLBISPHOSPHONATES VIA PD(O)-CATALYZED ENYNE CYCLIZATION, Heteroatom chemistry, 4(5), 1993, pp. 517-520
Intramolecular enyne cycloisomerization reactions catalyzed by Pd(PPh3
)4, gave 4-substituted 3-methlenecyclopentane-1,1-diylbisphosphonates
in good yield.