J. Org. Chem., Vol. 42, No. I , 1977 175 ... (6) LR Subrarnanian, M. Hanack, P. v. R. Schleyer, LW Chang, F. Effenberger, W. Kurt.?. P. J. Stano. and T. E. Dueber. J. Oro. Chem.. in Dress. (7) The total'yield of 3 &d 4 from the solvolysis i; 91 % besid&9% cyclobu- tanone which was probably formed owing to the adventitious moisture present in the system: other possible products like 3-butynetrifluoroethyl ether and cyclopropylidenemethyl trifluoroethyl ether ...