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Regiospecific Synthesis and X-ray Structural Study of Trifluoromethyl Substituted Dibenzosemibullvalene

L. Lončar ; Department of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, HR-41000 Zagreb, Croatia
M. Mintas ; Department of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, HR-41000 Zagreb, Croatia
G. Burek ; PLIVA, Pharmaceutical and Chemical Industry, HR-412000 Zagreb, Croatia
A. Hergold-Brundić ; Laboratory for General and Inorganic Chemistry, Faculty of Science, University of Zagreb, HR-41000 Zagreb, Croatia
A. Nagl ; Laboratory for General and Inorganic Chemistry, Faculty of Science, University of Zagreb, HR-41000 Zagreb, Croatia

Sažetak

Preparation of the novel regiospecifically trifluoromethyl substituted dibenzobarrelene 5 and dibenzosemibullvalene 6 is described. Unequivocal proof for the stereostructure of 6 was obtained by its X-ray crystallographic analysis. Geometrical data from X-ray structural analysis showed that the ester carbonyl groups adopt unfavorable conformations for conjugative interactions with respect to the cyclopropane ring involved in the skeleton of 6.

Ključne riječi

Hrčak ID:

136903

URI

https://hrcak.srce.hr/136903

Datum izdavanja:

2.7.1994.

Posjeta: 553 *