PHOTOCHEMICAL SYNTHESIS OF NOVEL NAPHTHO[1,2-<i>b</i>]BENZOFURAN DERIVATIVES FROM 2,3-DISUBSTITUTED BENZOFURANS
DOI:
https://doi.org/10.1007/5983Ключевые слова:
dibenzo[b, d]furans, naphtho[1, 2-b]benzofurans, terarylenes, intramolecular dehydration, photocyclization.Аннотация
A novel approach to the synthesis of naphtho[1,2-b]benzofuran derivatives based on the photochemical reaction of 2,3-disubstituted benzofurans was developed. The studied process includes the photocyclization of the hexatriene system and subsequent aromatization of benzene ring via elimination of water molecule. The starting terarylenes were prepared via a new three-component condensation of phenols, arylglyoxals, and cyclic 1,3-diketones.
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Опубликован
2021-01-26
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Оригинальные статьи