[1]Ikeda,Kiyoshi;Achiwa,Kazuo;Sekiya,Minoru[TetrahedronLetters,1983,vol.24,#9,p.913-916]
[1]Reetz,ManfredT.;Mueller-Starke,H.[LiebigsAnnalenderChemie,1983,#10,p.1726-1738]
[1]Synthesis,1982,p.1089-1091
[1]TetrahedronLetters,1989,vol.30,p.747-750
[1]JournaloftheChemicalSociety.Chemicalcommunications,1992,p.373-374