A novel oxidative intramolecular [4+2]cycloaddition of silylene-protected dihydroxystyrene derivatives leading to peri-hydroxy polyclic aromatic compounds: A synthesis of the ABCD ring system of fredericamycin A

DOI: 10.1248/cpb.39.2106

Source and publish data:

Chemical and Pharmaceutical Bulletin p. 2106 - 2114 (1991)

Update date:2022-08-05

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Authors:

Kita Kita

Okunaka Okunaka

Honda Honda

Kondo Kondo

Tamura Tamura

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Article abstract of DOI:10.1248/cpb.39.2106

Heating of the silylene protected dihydroxystyrene generated from the o-hydroxyacetophenone (3a) at 130-150°C for 15-48 h in a sealed tube gave intramolecular [4+2]cycloaddition products (5 and 6). The addition of chloranil to the reaction mixture brought

Full text of DOI:10.1248/cpb.39.2106

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