Ring-opening reactions. 3. Mechanistic path vs. ring-strain control in elimination and substitution reactions of 1,1-dimethyl cyclic ammonium ions and their .alpha.,.alpha.'-dimethyl-substituted derivatives
Ring-opening reactions. 3. Mechanistic path vs. ring-strain control in elimination and substitution reactions of 1,1-dimethyl cyclic ammonium ions and their .alpha.,.alpha.'-dimethyl-substituted derivatives