Spectroscopic and acoustic studies in relation to the structure of some 1,3-dioxolan-2-ones

Abstract

N.m.r., i.r., and ultrasonic absorption measurements on the heterocyclic molecule 1,3-dioxolan-2-one and its 4-methyl and 4-chloromethyl derivatives have shown that the ring structures are very similar in these compounds. In the chloromethyl derivative two of three possible rotational isomers formed by internal rotation of the –CH₂Cl group were identified from their i.r. spectra and the ultrasonic data were consistent with this conclusion. The experimental data, however, do not preclude the existence of the third rotational isomer.