A new procedure for the preparation of 3,4-dihydropyrimidin-2(1H)-one and octahydroquinazolinone derivatives catalyzed by SCMNPs@CA-EA-SO3H under solvent-free conditions-Reference-Cited by-同舟云学术

A new procedure for the preparation of 3,4-dihydropyrimidin-2(1H)-one and octahydroquinazolinone derivatives catalyzed by SCMNPs@CA-EA-SO3H under solvent-free conditions

Published:2021-12-30 Issue: Volume:19 Page:
ISSN:1570-1786
Container-title:Letters in Organic Chemistry
language:en
Short-container-title:LOC

Author:

Yahyazadeh Asieh¹,Nafei-Kohi Motahare¹,Abbaspour-Gilandeh Esmayeel²,Aghaei-Hashjin Mehraneh²

Affiliation:

1. Chemistry Department, University of Guilan, Rasht 41335‑1914, Iran

2. Department of Chemistry, College of Science, University of Mohaghegh Ardabili, Ardabil, Iran

Abstract

Abstract: Catalyzed with SCMNPs@CA-EA-SO3H, as a green and heterogeneous solid acid catalyst, 3,4-dihydropyrimidin-2(1H)-one and octahydroquinazolinone derivatives were obtained in high-to-excellent yields and in short reaction times via the one-pot multi-component condensation of ethyl acetoacetate or dimedone, urea, and aldehyde compounds under solvent-free conditions. More importantly, the green catalytic system could be easily collected from the reaction solution utilizing an external magnet and reused for five runs with a negligible decrease in yields and reaction rate.

Publisher

Bentham Science Publishers Ltd.

Subject

Organic Chemistry,Biochemistry

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