Abstract
(+)-2,2′-Dimethyl-1,1′-binaphthyl has resisted racemisation in solution. This contrasts with 8,8′-dimethyl-1,1′-binaphthyl which is optically labile. Methyl proton signals in the n.m.r. spectra of these compounds can be used to throw light on their conformations in the ground state.
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