Anomeric and conformational deuterium isotope effects in saturated sulphur and nitrogen heterocycles
- 1 January 1987
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 8,p. 595-597
- https://doi.org/10.1039/c39870000595
Abstract
Gas phase Fourier transform i.r. and solution 500 MHz 1H n.m.r. measurements show that deuterium prefers the equatorial over the axial site in N,N′,5,5-tetramethylhexahydro[2-2H1]pyrimidine by 420 J mol–1, but exhibits no preference in the case of 5,5-dimethyl[2-2H1]-1,3-dithiane.Keywords
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