共 8 条
[2]
ALDER K, 1942, BER, VB 75, P1501
[5]
COPE AC, 1959, J AM CHEM SOC, V72, P1128
[6]
DOMINIANNI SJ, UNPUBLISHED OBSERVAT
[7]
FAHR E, 1966, ANGEW CHEM, V78, P376