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(6) The structures and products obtained by the reactions described herein have been verified by infrared, nmr, and mass spectrometric or elemental analysis. Purity was checked by vapor phase chromatography and quantitative nmr analysis.(7) E. J. Corey, S. W. Chow, and R. A. Scherrer, J. Am. Chem. Soc., 79, 5773 (1957).(8) E. J. Corey, R. Hartmann, and P. A. Vatakencherry, ibid., 84, 2611 (1962). Theiodocamphene used in the synthesis of 3 was prepared from the corresponding bromide by successive treatment with magnesium, mercuric chloride, and iodine. The bromocamphene was derived from-bromocamphor by reduction (BHC) and dehydration with POCL-pyridine.