... (2) Taylor, E. C.; Tseng, CP; Rampal, JB J. Org. Chem. 1982,47, (3) (a) Ramirez, F.; von Ostwalden, PW J. Am. Chem. SOC. 1959,81, 156-160. (b) von Ostwalden, PW; Roberts, JD J. Org. Chem. 1971, ... 552-555. 36, 3792-3795. 0 1986 American Chemical Society