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Equilibration of alkene regioisomers in trans-and cis-octalins
作者:Hugh W. Thompson、Kamlesh D. Gaglani
DOI:10.1039/p29930000967
日期:——
experimental and theoretical literature values. Values of ΔH for the enol acetates of 1 and 4 are –0.69 and 0.0 kcal mol–1, respectively, and addition of an angular methyl decreases the relative stability (ΔH)of the Δ1 isomer, by 1.25–2.25 kcal mol–1 for the trans skeleton and by 1.0–1.4 kcal mol–1 for the cis skeleton. For a given angular substituent, changing cis stereochemistry to trans also decreases