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Title

One-pot synthesis of 2-oxo-1,2,3,4-tetrahydropyrimidines using homogeneous catalyst under solvent-free conditions

Year: 1395
COI: JR_ICC-5-1_005
Language: EnglishView: 222
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Authors

Asadollah Farhadi - petroleum university of technology of ahwaz
Mohammad Ali Takassi - Petroleum University of Technology Ahwaz
Lila Hejazi - Petroleum University of Technology Ahwaz

Abstract:

The chemistry of 2-oxo-1,2,3,4-tetrahydropyrimidines began to develop toward the end of 1893 year, when the first representatives of this class compounds were reported by P. Biginelli. Despite prior reports of several really effective catalytic and non-catalytic approaches towards Biginelli-type products, an overwhelming number of new catalysts for the Biginelli reaction have been recently published. Most of the catalysts are somewhat exotic, expensive, harmful and even ineffective in the absence of acidic additives. This work reports on the preparation of 2-oxo-1,2,3,4-tetrahydropyrimidines using the NaF as catalyst. One-pot condensation reactions were carried out for various aryl aldehydes, ethyl acetoacetate, acetyl acetone and urea under solvent-free conditions at 100 °C and afforded the target molecules in good to excellent yields. The advantages of this method are high yield of product, short reaction time, and separation of this catalyst is very comfortable. Furthermore, according to the experimental data, we have proposed the suitable mechanism.

Keywords:

Solvent-free NaF, catalyst, Biginelli-type products conditions, Biginelli reaction

Paper COI Code

This Paper COI Code is JR_ICC-5-1_005. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/931424/

How to Cite to This Paper:

If you want to refer to this Paper in your research work, you can simply use the following phrase in the resources section:
Farhadi, Asadollah and Takassi, Mohammad Ali and Hejazi, Lila,1395,One-pot synthesis of 2-oxo-1,2,3,4-tetrahydropyrimidines using homogeneous catalyst under solvent-free conditions,https://civilica.com/doc/931424

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