Synthesis of novel mono- and diaryl-substituted [2.2]paracyclophanes

Autor: Rozenberg, V. I., Sergeeva, E. V., Kharitonov, V. G., Vorontsova, N. V., Vorontsov, E. V., Mikul'shina, V. V.
Zdroj: Russian Chemical Bulletin; June 1994, Vol. 43 Issue: 6 p1018-1023, 6p
Abstrakt: The cross-coupling reactions of 4-bromo[2.2]paracyclophane withp-tolylmagnesium bromide in the presence of various palladium and nickel complexes have been studied. It was found that [1,1 '-bis(diphenylphosphinoferrocene)]palladium dichloride (PdCl2 · dppf) shows the highest catalitic activity in this reaction. A series of new mono- and diaryl [2.2]paracyclophane derivatives with various substituents in the arene ring have been synthesized using this catalyst. It was shown that it is possible to cross-couple organozinc [2.2]paracyclophane derivatives with aromatic bromides. The composition and structure of the compounds obtained have been established on the basis of elemental analysis and spectral data. Some correlations between the structure and spectral parameters of mono- and diarylsubstituted [2.2]paracyclophanes have been found.
Databáze: Supplemental Index
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