A novel steric effect in the thermolysis of prop-2-ynylvinyl-carbinols
Abstract
The formation of both acetylvinylcyclopropane and 4-acetylcyclopentene during the thermolysis of 3-methylhex-1-en-5-yn-3-ol has been verified and the mechanistic discontinuity can be interpreted on the basis of a torsional effect in the transition state.