The conformational analysis of saturated heterocycles. Part XXI. Dipole moment studies of 1-ethyl- and 1-isopropyl-piperidines and further studies of 1-methylpiperidines
- 1 January 1970
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society B: Physical Organic
- p. 122-127
- https://doi.org/10.1039/j29700000122
Abstract
Further measurements indicate a conformational free-energy difference of ca. 0·65 kcal./mole for an N-methyl group in the piperidine ring system in favour of the methyl group equatorial, and values of 0·9 and 1·4 kcal./mole, respectively, for N-ethyl and N-isopropyl groups. These values are discussed in comparison with literature data.Keywords
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