were used in situ to promote the asymmetric selenocyclization of γ-alkenyl oximes and δ-phenyl-γ-alkenyl oximes. The course of these reactions and hence the structures of the cyclization products were dictated by the (E)- or (Z)-geometry of the starting oximes. The two types of cyclization products were either the cyclicnitrones or the 1,2-oxazines; in both cases the reactions proceeded with excellent
delta-Phenyl-gamma-alkenyl oximes react with an excess of ammonium persulfate and catalytic amounts of diphenyl diselenide in the presence of trifluoromethanesulfonic acid in acetonitrile to afford 2-phenylpyridines and 2-phenylpyridine N-oxides in moderate yields.
GAWLEY, R. E.;TERMINE, E. J., TETRAHEDRON LETT., 1982, 23, N 3, 307-308
作者:GAWLEY, R. E.、TERMINE, E. J.
DOI:——
日期:——
GAWLEY, R. E.;TERMINE, E. J., J. ORG. CHEM., 1984, 49, N 11, 1946-1951
作者:GAWLEY, R. E.、TERMINE, E. J.
DOI:——
日期:——
GAWLEY R. E.; CHEMBURKAR SANJAY, TETRAHEDRON LETT., 27,(1986) N 19, 2071-2074