Novel and efficient catalysts for the one-pot synthesis of 3,4-dihydropyrano[c]chromene derivatives in aqueous media

被引：295

作者：

Abdolmohammadi, Shahrzad

Balalaie, Saeed

机构：

[1] KN Toosi Univ Technol, Peptide Chem Res Grp, Tehran, Iran

[2] Univ Tehran, Coll Sci, Sch Chem, Tehran, Iran

来源：

TETRAHEDRON LETTERS | 2007年 / 48卷 / 18期

关键词：

D O I：

10.1016/j.tetlet.2007.02.135

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Diammonium hydrogen phosphate, (NH(4))(2)HPO(4)(DAHP), efficiently catalyzes the one-pot, three-component reaction of an aromatic aldehyde, malononitrile and 4-hydroxycoumarin in aqueous media under mild conditions at room temperature, to afford the corresponding dihydropyrano[c]chromenes in high yields. (S)-Proline has also been used as another neutral catalyst for this reaction at reflux. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：3299 / 3303

页数：5

共 33 条

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