A highly efficient and sustainable synthesis of dihydropyrano[2,3-c] pyrazoles using polystyrenesupported p- toluenesulfonic acid as reusable catalyst

被引：16

作者：

Chaudhari, Mahendra A. ^{[1
]}

Gujar, Jitendra B. ^{[1
]}

Kawade, Deepak S. ^{[1
]}

Jogdand, Nivrutti R. ^{[2
]}

Shingare, Murlidhar S. ^{[1
]}

机构：

[1] Dr Babasaheb Ambedkar Marathwada Univ, Dept Chem, Aurangabad 431004, Maharashtra, India

[2] Dr Reddys Labs Ltd, Hyderabad 500049, Andhra Pradesh, India

来源：

COGENT CHEMISTRY | 2015年 / 1卷 / 01期

关键词：

dihydropyrano[2,3-c] pyrazoles; polystyrene-supported; p-toluenesulfonic acid; green chemistry;

D O I：

10.1080/23312009.2015.1063830

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A simple, expedient, and ecofriendly protocol for the one-pot synthesis of dihydropyrano[2,3-c] pyrazole derivatives using polystyrene-supported p-toluenesulfonic acid as a highly active and reusable heterogeneous catalyst in water has been developed. The core advantages of the present protocol are excellent yields, mild reaction conditions, broad substrate scope, and easy work-up procedure. This new protocol exemplifies the operationally simple synthesis of dihydropyrano[2,3-c] pyrazoles in a time- efficient and cost-effective manner.

引用

页数：9

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