Improved synthesis of bis[p-(phenylethynyl)phenyl]hetarylenes |
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Authors: | M. L. Keshtov A. L. Rusanov N. M. Belomoina A. K. Mikitaev |
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Affiliation: | (1) A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 ul. Vavilova, 117813 Moscow, Russian Federation |
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Abstract: | Bis[p-(phenylethynyl)phenyl]hetarylenes were synthesized in high yields by an improved method using cross-coupling between phenylacetylene and 4,4′-dibromobenzil followed by condensation of the 4,4′-di(phenylethynyl)benzil obtained with eithero-phenylenediamine and 3,4-diaminobenzoic acid or with benzaldehyde andp-nitrobenzaldehyde in the presence of ammonium acetate. Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 10, pp. 1889–1890, October, 1997. |
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Keywords: | phenylacetylene, cross-coupling reaction, dibromobenzil bis[p-phenylethynyl)phenyl]hetarylenes |
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