Bentonite-titana Composite as an Efficient, Eco-friendly and Non-toxic Catalyst for Synthesis of Benzopyran Derivatives Under Heating and Solvent-free Conditions

被引：1

作者：

Darehkordi, Ali ^{[1
]}

Hosseini, Mohammad Sadegh ^{[1
]}

Mosavi, Mirrasol ^{[1
]}

Poorfreidoni, Alireza ^{[1
]}

机构：

[1] Vali E Asr Univ Rafsanjan, Dept Chem, Fac Sci, Rafsanjan 77176, Iran

来源：

LETTERS IN ORGANIC CHEMISTRY | 2015年 / 12卷 / 03期

关键词：

Bentonite-titana composite; benzopyran; dimedone; malonoitrile; barbituric acid; pyrano[2,3-d]pyrimidine; ONE-POT SYNTHESIS; GREEN SYNTHESIS;

D O I：

10.2174/1570178612666150108002202

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Bentonite-titana composite was prepared and characterized by XRD, FT-IR and SEM. Results indicate that TiO2 particles have been supported on the bentonite layers and a delaminated structure is formed. Then the bentonitetitana composite as a mild, eco-friendly, non-toxic an efficient heterogeneous catalyst have been used for synthesis of benzopyran derivatives from the three-component condensation reaction of dimedone or barbituric acid, malonoitrile, and aromatic aldehydes under solvent free conditions in good to excellent yield and short reaction times.

引用

页码：159 / 167

页数：9

共 14 条

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