Photosensitized intramolecular cyclization of furan and non-activated alkene: pathway switching by the substituent on the furan ring

被引:17
作者
Arai, Noriyoshi [1 ]
Tanaka, Koichiro [1 ]
Ohkuma, Takeshi [1 ]
机构
[1] Hokkaido Univ, Grad Sch Engn, Div Chem Proc Engn, Sapporo, Hokkaido 0608628, Japan
基金
日本学术振兴会;
关键词
Photochemistry; Furan; Alkene; Cycloaddition; Diels-Alder reaction; DIELS-ALDER REACTIONS; ORGANIC-SYNTHESIS; CATION; CYCLOADDITION; 1,3-CYCLOHEXADIENE; 1,3-DIENES; DIENE; ACID; KETONES;
D O I
10.1016/j.tetlet.2009.12.123
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A photosensitized reaction of furan with a non-activated simple alkene was investigated Intramolecular Diels-Alder-type cycloaddition reactions between furan and a trisubstituted alkene were found 10 proceed in high yield in the presence of 9,10-dicyanoanthracene under UV irradiation to afford oxabicyclo[2 2 1]heptane derivatives in high stereoselectivity when the furan was alkyl substituted. On the other hand, the aryl-substituted furan cyclized via a completely different pathway to give spirocyclic and tricyclic products. (C) 2009 Elsevier Ltd All rights reserved.
引用
收藏
页码:1273 / 1275
页数:3
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