Stereochemical studies: XVII—the proton coupling constants and conformational equilibria of trans-1,2-disubstituted cyclohexenes |
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Authors: | N. M. Viktorova S. P. Knyazev N. S. Zefirov Yu. D. Gavrilov G. M. Nikolaev V. F. Bystrov |
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Abstract: | The vicinal 3Jaa and 3Jee spin-spin coupling constants of a number of deuterated trans-1,2-disubstituted cyclohexenes and the ΔH and ΔS values of the conformational equilibria of these compounds have been determined by computer optimisation of the 3J(HH) = f(T) function. Compounds with —CF3 and CCl3 substituents were shown to have an enhanced proportion of the diaxial conformer. |
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