Synthesis of Functionalized Indoles via Palladium-Catalyzed Aerobic Oxidative Cycloisomerization of o-Allylanilines

被引:38
作者
Nallagonda, Rajender [1 ]
Rehan, Mohammad [1 ]
Ghorai, Prasanta [1 ]
机构
[1] Indian Inst Sci Educ & Res Bhopal, Dept Chem, Bhopal 462066, India
关键词
ASSISTED INTRAMOLECULAR AMINATION; C BOND FORMATION; N-ARYL ENAMINES; MOLECULAR-OXYGEN; ALKALOIDS; ANILINES; ALKENES; CYCLIZATION; OLEFINS; AMINOPALLADATION;
D O I
10.1021/ol502244g
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
An efficient strategy for the synthesis of 3-substituted 2-benzylindoles from stable and readily available o-allylanilines, prepared from anilines and allyl alcohols, has been developed. The reaction occurred via a regioselective 5-exo-trig intramolecular oxidative cycloisomerization using Pd(OAc)(2) as catalyst and molecular oxygen as an oxidant. The reaction showed a broad substrate scope with good to excellent yields.
引用
收藏
页码:4786 / 4789
页数:4
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