The synthesis, separation, and structural assignments of some cis- and trans-4-substituted derivatives of 2-phenyl-1,3-dioxolan are described. Some of the structural assignments were based on n.m.r. correlations; the general utility of such methods is discussed. trans-4-Methoxycarbonyl-2-methyl-1,3-dioxolan is more stable than the cis-isomer, unlike 2,4-dimethyl-1,3-dioxolan, the cis-isomer of which is preferred.
T. D. Inch and N. Williams, J. Chem. Soc. C, 1970, 263 DOI: 10.1039/J39700000263
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