期刊
ORGANIC LETTERS
卷 13, 期 3, 页码 474-477出版社
AMER CHEMICAL SOC
DOI: 10.1021/ol102816a
关键词
-
资金
- Roche Research Foundation
- Novartis Foundation
- Fonds der Chemischen Industrie
Complex tetracyclic ring systems were assembled by a photoinduced rearrangement of 3,3'-bis(arylbenzofurans). Irradiation of 1 under N-2 atmosphere yielded the benzonaphthofurans 2 in 75-90% yield. When the reaction was conducted under an O-2 atmosphere in the presence of tetracyanoethylene (TCNE) a different reaction pathway was observed leading to the isolation of 3 as the major product. Also, the photochemical properties of these novel structures were investigated.
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