M. Zucco et al., PALLADIUM-CATALYZED INTRAMOLECULAR CYCLIZATION OF VINYLOXIRANE REGIOSELECTIVE FORMATION OF CYCLOBUTANOL DERIVATIVE, Tetrahedron letters, 36(14), 1995, pp. 2487-2490
Vinyloxirane 1 in the presence of catalytic amount of palladium comple
xes led smoothly and very regioselectively to cyclobutane derivatives
as a 4 to 1 mixture or diastereomers.