[1]TetrahedronLetters,1988,vol.29,p.551-554
[1]Fuhshuku,Ken-Ichi;Tomita,Mina;Sugai,Takeshi[AdvancedSynthesisandCatalysis,2003,vol.345,#6-7,p.766-774]
[2]Acklinetal.[HelveticaChimicaActa,1958,vol.41,p.1428,1430]
[3]Hajos,Z.G.etal.[Tetrahedron,1968,vol.24,p.2039-2046]