Reactions of 2-cyclohexen-1-ones and cyclohexane-1,3-diones with chloro methylene iminium salts
作者:Alan R. Katritzky、Charles M. Marson
DOI:10.1021/jo00389a016
日期:1987.6
2,4-Dichloro-3-(dimethylaminomethylene)-1,4-cyclohexadiene-1,5- dicarboxaldehyde: X-ray structure, mndo calculations, and rotational barriers of a stable non-aromatic tautomer of a penta-substituted benzene
作者:Alan R. Katritzky、Charles H. Marson、Gus Palenik、Anna E. Koziol、Hudson Luce、Mati Karelson、Ban-Chi Chen、Wallace Brey
DOI:10.1016/s0040-4020(01)85953-6
日期:1988.1
isomer of the title compound. Reactions of the title compound were studied, and the structure was confirmed by X-ray crystallography. MNDO calculations give a geometry in agreement with that found, and indicate an energy difference of 13 in favour of the benzenoid isomer . Temperature-dependent 13C- and 1H-NMRspectra afforded rotational barriers.