Cu(I) catalyst in DMF: An efficient catalytic system for the synthesis of furans from 2-(1-alkynyl)-2-alken-1-ones

被引:189
作者
Patil, NT [1 ]
Wu, HY [1 ]
Yamamoto, Y [1 ]
机构
[1] Tohoku Univ, Grad Sch Sci, Dept Chem, Sendai, Miyagi 98085789, Japan
关键词
D O I
10.1021/jo050191u
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The cyclization of 2-(1-alkynyl)-2-alken-1-ones 1 proceeded very smoothly in the presence of alcohols 2 with a catalytic amount of Cu(I)Br in DMF at 80 degrees C, leading to the formation of highly substituted furans 3. The catalytic system reported herein is easy to handle, compared to the previously known system wherein the reaction between 1 and 2 needed to use moisture sensitive gold(III) chloride.
引用
收藏
页码:4531 / 4534
页数:4
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