J. Org. Chem. 1982,47,5198-5201
5198
methylenecyclohexane systems by peroxybenzimidic acid systems to give predominantly equatorial epoxides, in contrast to expoxidation by peracids, which gave predominantly products from an axial attack.
Experimental Section Melting points were determined on a Thomas-Hoover capillary melting-point apparatus and are uncorrected. 'H NMR spectra were recorded in CDCl, solutions at 90 MHz on a Varian Em 390 instrument. Chemical shifts are reported in parts per million (6) downfield from tetramethylsilane as an internal standard, and multiplicity
