H3PMo7W5O40•24H2O catalyzed access to fused pyrazolopyranopyrimidine derivatives via one-pot multicomponent synthesis: green chemistry

被引：8

作者：

Aher, Dipak S. ^{[1
]}

Khillare, Kiran R. ^{[1
]}

Chavan, Laxmikant D. ^{[2
]}

Shankarwar, Sunil G. ^{[1
]}

机构：

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

[2] Jawaharlal Nehru Engn Coll, Aurangabad 431003, Maharashtra, India

来源：

MONATSHEFTE FUR CHEMIE | 2022年 / 153卷 / 01期

关键词：

Catalyst; Green chemistry; Heteropoly acid; Multicomponent synthesis; Pyrazolopyranopyrimidines; 4-COMPONENT SYNTHESIS; ANTIMICROBIAL ACTIVITY; ACID CATALYST; EFFICIENT; PROTOCOL; NANOPARTICLES; INHIBITORS; BIGINELLI; DESIGN;

D O I：

10.1007/s00706-021-02868-7

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An economic, sustainable, and straightforward environmentally friendly route for synthesis of 3-methyl-4-aryl-1,4-dihydropyrazolo[4',3':5,6]pyrano[2,3-d]pyrimidine-5,7(6H,8H)-diones via condensation of ethyl acetoacetate, hydrazine hydrate, barbituric acid, and aromatic aldehydes in the presence of catalytic amount of -H3PMo7W5O40 center dot 24H(2)O under solventfree condition was reported. This environmentally benign protocol offers selective synthesis of pyrazolopyranopyrimidine derivatives without any side product with excellent yield in shorter time.

引用

页码：79 / 85

页数：7

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