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Synthesis 1995; 1995(2): 133-135
DOI: 10.1055/s-1995-3878
short paper
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Palladium(0) Complex-Catalyzed Debrominative Coupling of (Tribromomethyl)- and (Dibromomethyl)benzenes to Diarylacetylenes and 1,2-Diarylethenes

Shuntaro Mataka* , Guo-Bin Liu, Masashi Tashiro
  • *Institute of Advanced Material Study, Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-koh-en, Kasuga-shi, 816 Japan
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Publikationsdatum:
31. Dezember 2000 (online)

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Palladium(0)-triphenylphosphine complex-catalyzed debrominative coupling reaction of (tribromomethyl)benzenes gave diarylacetylenes or a mixture of (E)- and (Z)-α,β-dibromostilbenes depending upon the substrate and the solvent being used. On the other hand, (dibromomethyl)benzenes afforded (E)-stilbenes selectively under the same reaction conditions.

(dibromomethyl)benzenes - (tribromomethyl)benzenes - palladium(0) - coupling reaction