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Ruthenium-catalyzed synthesis of quinolines from anilines and allylammonium chlorides in an aqueous medium via amine exchange reaction
被引:97
|作者:
Cho, CS
Kim, JS
Oh, BH
Kim, TJ
Shim, SC
[1
]
Yoon, NS
机构:
[1] Kyungpook Natl Univ, Coll Engn, Dept Ind Chem, Taegu 702701, South Korea
[2] Kyungpook Natl Univ, Coll Engn, Dept Dyeing & Finishing, Taegu 702701, South Korea
来源:
关键词:
ruthenium;
catalyst;
cyclization;
quinolines;
aqueous medium;
D O I:
10.1016/S0040-4020(00)00694-3
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
Anilines react with allylammonium chlorides in an aqueous medium (H2O-dioxane) in the presence of a catalytic amount of RuCl2(PPh3)(3) together with SnCl2. 2H(2)O to give the corresponding quinolines in moderate to good yields. The existence of SnCl2. 2H(2)O is necessary for the effective formation of quinolines, and a reaction pathway involving amine exchange reaction between anilines and allylammonium chlorides to form an imine is proposed for this catalytic process. (C) 2000 Elsevier Science Ltd. All rights reserved.
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页码:7747 / 7750
页数:4
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