(3) AJ Ashe, 111, and P. Shu, J. Amer. Chem. SOC., 93, 1804 (1971).(4) The pmr spectra were taken in dilute solutions of the indicated solvent using TMS as an internal standard. They were recorded using a Varian T-60 instrument. The mass spectra were taken on an AEI Model MS-9 spectrometer at 45 eV using a gas inlet. The uv spectra were recorded in cyclohexane using balanced 1-cm cells on a Cary-14 spectrometer.
