Silver(I)-catalyzed novel cascade cyclization reactions: Incorporation of allenes into the isochromenes

被引:64
作者
Patil, NT [1 ]
Pahadi, NK [1 ]
Yamamoto, Y [1 ]
机构
[1] Tohoku Univ, Grad Sch Sci, Dept Chem, Sendai, Miyagi 9808578, Japan
关键词
D O I
10.1021/jo051524q
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The silver(I)-catalyzed reaction of alkynones with alcohols represents a general tool for the synthesis of 1-allenyl isochromenes. The reaction most probably proceeds via the formation of benzopyrylium cation, which subsequently undergoes nucleophilic attack of an alcohol to give the annulation products.
引用
收藏
页码:10096 / 10098
页数:3
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