Stereoselective addition reactions of alkynes with benzenetellurinyl trifluoromethanesulfonate in acetonitrile: organotellurium-mediated one-pot synthesis of oxazoles from internal alkynes
Stereoselective addition reactions of alkynes with benzenetellurinyl trifluoromethanesulfonate in acetonitrile: organotellurium-mediated one-pot synthesis of oxazoles from internal alkynes
Ogura, Fumio; Otsubo, Tetsuo; Aso, Yoshio, Phosphorus, Sulfur and Silicon and the Related Elements, 1992, vol. 67, # 1-4, p. 223 - 238
作者:Ogura, Fumio、Otsubo, Tetsuo、Aso, Yoshio
DOI:——
日期:——
Stereoselective addition reactions of alkynes with benzenetellurinyl trifluoromethanesulfonate in acetonitrile: organotellurium-mediated one-pot synthesis of oxazoles from internal alkynes
Benzenetellurinyl trifluoromethanesulfonate in conjunction with acetonitrile underwent an E-stereoselective amidotellurinylation reaction with alkynes, but the addition products from terminal alkynes tended to isomerize thermally to (Z)-β-acetamidovinyl phenyl telluroxide, whereas those from internal alkynes were transformed into oxazoles via a spontaneous intramolecular cyclization.