rinses were saturated with sodium chloride and extracted with cyclohexane (2 X 25 ml). The combined cyclohexane rinses and extracts were dried over anhydrous magnesium sulfate and the solvent was evaporated at reduced pressure. GLC analysis (10 ft X 0.25 in. FFAP column, 100') of the residue indicated a single hydrocarbon product, which was purified by GLC (above conditions) to give 15 as a clear oil: GTM~(CDC~~) 1.16 (s, 3 H, CH3) and ...
