Chemistry Letters

Asymmetric Cyclization via Oxygen Cation Radical: Enantioselective Synthesis of cis-4b, 9b-Dihydrobenzofuro [3, 2-b] benzofurans.

K Masutani, R Irie, T Katsuki

Index: Masutani, Kouta; Irie, Ryo; Katsuki, Tsutomu Chemistry Letters, 2002 , # 1 p. 36 - 37

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Citation Number: 12

Abstract

Aerobic oxidative cyclization of 2, 2′-dihydroxystilbenes via oxygen cation radical to give cis-4b, 9b-dihydrobenzofuro [3, 2-b] benzofurans was carried out in an enantioselective manner (up to 89% ee) by using (nitrosyl) Ru (salen) 10 as the catalyst under photo- irradiated conditions.

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