共 31 条
[21]
OAE S, 1977, J CHEM SOC CHEM COMM, P407
[23]
OAE S, 1979, TETRAHEDRON LETT, V35, P3307
[24]
OLAH GA, 1992, SYNTHESIS-STUTTGART, P1085
[26]
RICHARD S, 1988, J MOL STRUCT, V178, P135
[29]
STREET GB, 1977, J CHEM SOC CHEM COMM, P407