One Pot Aqueous Media Synthesis of 1,3-Oxazine Derivatives Catalyzed by Reusable Nano-Al2O3/BF3/Fe3O4 at Room Temperature

被引:12
作者
Babaei, Elaheh [1 ]
Mirjalili, Bi Bi Fatemeh [1 ]
机构
[1] Yazd Univ, Coll Sci, Dept Chem, Yazd, Iran
关键词
Lewis acid catalyst; Magnetic catalyst; Multi-component reactions; Nano-Al2O3/BF3/Fe3O4; 1,3-Oxazine; THIOUREA DIOXIDE; EFFICIENT; WATER;
D O I
10.1080/10406638.2019.1600561
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
An expedient and pseudo four-component reaction catalyzed by nano-Al2O3/BF3/Fe3O4 in water at room temperature to synthesize of 2-aryl/alkyl-2,3-dihydro-1H-naphtho[1,2-e][1,3]oxazines has been described. The catalyst was removed from the mixture of reaction by an external magnet and was reusable for several times without any considerable loss of its activity. The obtained 1,3-oxazine compounds were characterized by various methods such as FT-IR, H-1 NMR and melting point. Environmentally benign, easy work-up, excellent yields, clean and convenient procedure are some advantages of this method. [GRAPHICS] .
引用
收藏
页码:518 / 525
页数:8
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