Steric effects in five-membered rings. Part 7. Relative stabilities of cyclopentane-1,3-dicarboxylate diesters
Abstract
Base-catalysed cis-trans equilibria for dimethyl, diethyl, and methyl ethyl cyclopentane-1,3-dicarboxylates were established at several temperatures and solvents. Thermodynamic parameters were calculated thereof and conformational analytical implications are discussed, using a new approach for assessing entropy effects.