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- W2168687549 abstract "By use of a basic catalyst, lithium β-aminoethylamide in ethylenediamine–benzene, trans-Δ1- and trans-Δ2-octalins have been equilibrated at three temperatures, and free energies, enthalpies, and entropies of isomerisation have been deduced. Similar but less precise information has been obtained for the interconversion of the corresponding cis-Δ1- and -Δ2-octalins. The thermodynamic data are compared with those resulting from other experimental work on related steroid olefins and with the theoretical predictions of quantitative conformational analysis. For the process trans-Δ1- octalin →trans-Δ2-octalin, as dilute solutions in ethylenediamine–benzene (2 : 1), our best values are ΔH=–0·52 ± 0·06 kcal./mole, ΔS=–0·8 ± 0·3 cal./(deg. mole); for the cis-isomers corresponding estimates are +0·25 ± 0·25 kcal./mole and –0·8 ± 0·7 cal./(deg. mole), respectively." @default.
- W2168687549 created "2016-06-24" @default.
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- W2168687549 date "1969-01-01" @default.
- W2168687549 modified "2023-10-06" @default.
- W2168687549 title "Olefin isomerisation. Part I. Equilibration of octalins related to steroid olefins" @default.
- W2168687549 doi "https://doi.org/10.1039/j29690000467" @default.
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