Synthesis of coumarin derivatives from 4-oxo-4H-1-benzopyran-3-carboxaldehyde via 3-(arylaminomethylene)chroman-2,4-dione

被引：47
|
作者：
Bandyopadhyay, C [1 ]
Sur, KR [1 ]
Patra, R [1 ]
Sen, A [1 ]
机构：
[1] Ramakrishna Mission Vivekananda Centenary Coll, Dept Chem, Rahara 743186, W Bengal, India
来源：
TETRAHEDRON | 2000年 / 56卷 / 22期
关键词：
coumarin derivatives; montmorillonite; heterocycles; benzopyran;
D O I：
10.1016/S0040-4020(00)00269-6
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
K-10 Montmorillonite mediated condensation of aldehyde 1 with arylamine 2 affords chroman-2,4-dione 5 which gives tri-coumarol 8 by acid hydrolysis, 4-arylamino-3-formylcoumarin 11 and 1-benzopyrano[4,3-b]quinoline 12 on heating with POCl3. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：3583 / 3587
页数：5
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