1. Imre, S., Thomson, R.H., and Yalhi, B., Experientia37 (1981) 442.
2. Fusetani, N., Matsunaga, S., and Konosu, S., Experientia37 (1981) 680.
3. Okuda, R.K., Klein, D., Kinnel, R.B., Li, M., and Scheuer, P.J., Pure appl. Chem.54 (1982) 1907; Li, M.K. W., and Scheuer, P.J., Tetrahedron Lett.25 (1984) 587;25 (1984) 4707.
4. Takeda, K., Minato, H., and Ishikawa, M., J. chem. Soc.1964, 2591.
5. Low resolution EIMS m/z 212 (M+, 100), 197 (60), 182 (22), 169 (19), 165 (9), 154 (11), 153 (11), 141 (8), 128 (8), 115 (8), and 106 (6 rel. %).13C NMR (acetone-d6) δ 166.23 (s), 146.14 (s), 134.16 (s), 132.68 (s), 131.97 (d), 129.54 (d), 126.75 (s), 124.47 (s), 115.74 (d), 109.53 (d), 77.93 (t), 39.96 (d), 24.40 (q), 20.68 (q), and 12.83 (q).