Photocyclization reactions. Part  2   Synthesis of dihydrobenzofuranols using photocyclization of ethyl 2‐formylphenoxyacetates and ethyl 2‐acetylphenoxyacetates | Zendy

Horaguchi Takaaki | Zendy; Tsukada Chikara | Zendy; Hasegawa Eietsu | Zendy; Shimizu Takahachi | Zendy; Suzuki Tsuneo | Zendy; Tanemura Kiyoshi | Zendy

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Photocyclization reactions. Part 2 Synthesis of dihydrobenzofuranols using photocyclization of ethyl 2‐formylphenoxyacetates and ethyl 2‐acetylphenoxyacetates

Author(s) -

Horaguchi Takaaki,

Tsukada Chikara,

Hasegawa Eietsu,

Shimizu Takahachi,

Suzuki Tsuneo,

Tanemura Kiyoshi

Publication year - 1991

Publication title -

journal of heterocyclic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.321

H-Index - 59

eISSN - 1943-5193

pISSN - 0022-152X

DOI - 10.1002/jhet.5570280519

Subject(s) - chemistry , substituent , acetonitrile , medicinal chemistry , photochemistry , organic chemistry

Photocyclization reactions were carried out on ethyl 2‐formylphenoxyacetates 1a‐e and ethyl 2‐acetylphenoxyacetates 2a‐e in acetonitrile. Irradiation of 1a‐e gave dihydrobenzofuranols 3 in 20–46% yields. Similarly, irradiation of 2a‐e afforded dihydrobenzofuranols 6 and their derivatives 7, 8 in 40–86% yields. Substituent effects on photocyclization and reaction pathways are discussed.

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