Gold-catalyzed reactions of 2-alkynyl-phenylamines with α,β-enones

被引:163
作者
Alfonsi, M [1 ]
Arcadi, A [1 ]
Aschi, M [1 ]
Bianchi, G [1 ]
Marinelli, F [1 ]
机构
[1] Univ Aquila, Dipartimento Chim Ingn Chim & Mat, Fac Sci, I-67010 Capitol, AQ, Italy
关键词
D O I
10.1021/jo047793i
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The gold-catalyzed reaction of 2-alkynyl-phenylamines with alpha,beta-enones represents a new general one-pot entry into C-3-alkyl-indoles by sequential reactions. Gold-catalyzed sequential cyclization/alkylation, N-alkylation/cyclization, or N-alkylation/cyclization/alkylation reactions leading to different indoles can be directed by changing the 2-alkynyl-phenylamine 1/alpha,beta-enone 3 ratio and the reaction temperature. Unusual gold-catalyzed rearrangement reaction of indoles are observed at 140 degrees C. New gold-catalyzed formation of propargyl-alkyl ether under mild conditions and the hydration reaction of N-acetyl-2-ethynyl-phenylamine are reported.
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页码:2265 / 2273
页数:9
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