Novel Synthesis of 3-Aryl-4-hydroxybenzofurans via Four-Component Reaction from Substituted Nitrostyrenes, Aromatic Aldehydes, Cyclohexan-1,3-diones, and Ammonium Acetate

被引:5
|
作者
Li, Yan [1 ]
Liu, Hui [1 ]
Sun, Liang [2 ]
Liu, Juanjuan [1 ]
Xue, Zhiheng [1 ]
Yao, Juan [1 ]
Wang, Cunde [1 ]
机构
[1] Yangzhou Univ, Sch Chem & Chem Engn, Yangzhou 225002, Peoples R China
[2] Yancheng Orgun Pharmaceut Sci & Tech Co Ltd, Yancheng 224400, Peoples R China
基金
中国国家自然科学基金;
关键词
multicomponent reaction; 4-hydroxybenzofuran; substituted beta-nitrostyrene; dehydroaromatization; cyclohexane-1,3-dione; 5-MEMBERED RING-SYSTEMS; SOLID-PHASE SYNTHESIS; BENZOFURAN; INHIBITORS; ORGANOCATALYSTS; NITROOLEFINS; CONSTRUCTION; HETEROCYCLES; SERIES; FURANS;
D O I
10.1055/s-0033-1339332
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
An one-pot-reaction methodology was developed to synthesize a variety of polysubstituted 3-aryl-2-arylmethylene amino-4-hydroxybenzofurans from substituted beta-nitrostyrenes, aromatic aldehydes, ammonium acetate, and cyclohexane-1,3-diones for the generation of a wide range of structurally interesting and pharmacologically significant compounds. The reaction pathway involves Michael addition of substituted nitrostyrenes and cyclohexane-1,3-diones, then nucleophilic addition of 2-(2-nitro-1-phenylethyl) cyclohexane-1,3-dione and Schiff base generated from aromatic aldehyde and ammonium acetate and intramolecular cyclization, followed by dehydroaromatization to afford the corresponding 3-aryl-2-arylmethyleneamino-4-hydroxybenzofurans.
引用
收藏
页码:1851 / 1855
页数:5
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