Synthesis of 2,3,7,8-tetramethyldibenzofuran |
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Authors: | I. V. Mazere I. A. Meirovits V. A. Ozolinya O. Ya. Neiland |
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Affiliation: | (1) Riga Polytechnic Institute, USSR |
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Abstract: | 3,4,3,4-Tetramethyldiphenyl ether readily forms 2,2-dihalo derivatives on bromination and iodination. Heating 2,2-diiodo-4,5,4,5-tetramethyldiphenyl ether with copper powder or oxidation, of 2,2-dilithio-4,5,4,5-tetramethyldiphenyl ether gives 2,3,7,8-tetramethyldibenzofuran, the structure of which was proved by alternative synthesis from 2,2-dinitroand 2,2-diamino-4,5,4,5-tetramethyldiphenyls.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 12, pp. 1597–1599, December, 1972. |
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