Synthesis and Properties of Methano-Bridged Bisdehydro (17)-,-(19)-,-(21) annulenones and the Related Compounds.
H Higuchi, S Kiyoto, C Sakon, N Hiraiwa…
文献索引：Higuchi, Hiroyuki; Kiyoto, Seiken; Sakon, Chiaki; Hiraiwa, Naoki; Asano, Kaori; et al. Bulletin of the Chemical Society of Japan, 1995 , vol. 68, # 12 p. 3519 - 3538
14-Methyl-10, 12-bisdehydro-4, 9-methano-1H-[17] annulen-1-one, 14-methyl-10, 12- bisdehydro-4, 9-methano-1H-[19] annulen-1-one, and 16-methyl-12, 14-bisdehydro-6, 11- methano-1H-[21] annulen-1-one, as well as their methylated and benzannelated derivatives, were synthesized and their tropic properties were studied by NMR and UV spectra under neutral and acidic conditions. The tropicity in these compounds was found to be lower ...
