PHOTOCYCLIZATION OF BENZOFURANCARBOXANILIDES. PHOTOREARRANGEMENT OF THE BENZODIHYDROFURAN SYSTEM TO 3-o-HYDROXYPHENYLQUINOLONES

DOI: 10.1016/0040-4039(80)80209-7

Source and publish data:

Tetrahedron Letters p. 3893 - 3896 (1980)

Update date:2022-08-04

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Authors:

Kanaoka, Yuichi

San-nohe, Kunio

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Article abstract of DOI:10.1016/0040-4039(80)80209-7

cis-Dihydrobenzofuro<2,3-c>quinolone (4a) and cis-dihydrobenzofuro<3,2-c>quinolone (5) undergo photorearrangement, characteristic to the benzodihydrofuran system, leading to 3-o-hydroxyphenylquinolone (6).A plausible mechanism involving a cyclopropyl dienone (12) was discussed.

Full text of DOI:10.1016/0040-4039(80)80209-7

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