One-pot three component reaction for the synthesis of chromone-linked naphthopyrans

被引：6

作者：

Panja, Suman Kalyan ^{[1
]}

Maiti, Sourav ^{[1
]}

Bandyopadhyay, Chandrakanta ^{[1
]}

机构：

[1] RK Mission Vivekananda Centenary Coll, Dept Chem, Kolkata 700118, W Bengal, India

来源：

JOURNAL OF CHEMICAL RESEARCH | 2009年 / 11期

关键词：

chromone-3-carbaldehyde; multicomponent reaction; dimedone; Meldrum's acid; 1-benzopyran; MELDRUMS ACID; MULTICOMPONENT REACTIONS; CRYSTAL-STRUCTURE; DERIVATIVES; ALDEHYDES;

D O I：

10.3184/030823409X12561496499339

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Heating an equimolar mixture of 6-substituted chromone-3-carbaldehydes, beta-naphthol and dimedone in AcOH produces 3,3-dimethyl-11-(4-oxo-4H-1-benzopyran-3-yl)-1,2,3,4-tetrahydronaphtho[2,1-b]-1-benzopyran-11H-1-ones, whereas under similar condition use of Meldrum's acid in place of dimedone gave 1-benzopyrano[2,3-b]naphtho[1,2-e] pyran-7aH, 13H-13-ones and 3,4-dihydro-4-(4-oxo-4H-1-benzopyran-3-yl)naphtho[2,1-b]pyran-2H-2-ones.

引用

页码：692 / 695

页数：4

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