Acknowledgment. This work was supported under NSF Grant CHE75-20052. We are indebted to Dr. Bruce Thill for carrying out the initial preparations of cis-and trans-4-tert- butylcyclohexyl mercaptan and their respective disulfides, to Mr. Rafael Shapiro for repeating the preparations and making the deuterated compounds, and to Dr. David Harris for recording the 13C NMR spectra.
