Article

A Simple Efficient Procedure for the Synthesis of Benzopyrano[2,3-c]pyrazoles

H. Turki

Laboratoire de Chimie Appliquée: Hétérocycles, Corps Gras et Polymères, Faculté des Sciences de Sfax, 3038 Sfax, Tunisia

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M. Kamoun,

M. Kamoun

Laboratoire de Chimie Appliquée: Hétérocycles, Corps Gras et Polymères, Faculté des Sciences de Sfax, 3038 Sfax, Tunisia

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S. Lahiani,

S. Lahiani

Laboratoire de Chimie Appliquée: Hétérocycles, Corps Gras et Polymères, Faculté des Sciences de Sfax, 3038 Sfax, Tunisia

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R. El Gharbi,

Corresponding Author

R. El Gharbi

[email protected]

Laboratoire de Chimie Appliquée: Hétérocycles, Corps Gras et Polymères, Faculté des Sciences de Sfax, 3038 Sfax, Tunisia

E-mail: [email protected]Search for more papers by this author

H. Turki,

H. Turki

Laboratoire de Chimie Appliquée: Hétérocycles, Corps Gras et Polymères, Faculté des Sciences de Sfax, 3038 Sfax, Tunisia

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M. Kamoun,

M. Kamoun

Laboratoire de Chimie Appliquée: Hétérocycles, Corps Gras et Polymères, Faculté des Sciences de Sfax, 3038 Sfax, Tunisia

Search for more papers by this author

S. Lahiani,

S. Lahiani

Laboratoire de Chimie Appliquée: Hétérocycles, Corps Gras et Polymères, Faculté des Sciences de Sfax, 3038 Sfax, Tunisia

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R. El Gharbi,

Corresponding Author

R. El Gharbi

[email protected]

Laboratoire de Chimie Appliquée: Hétérocycles, Corps Gras et Polymères, Faculté des Sciences de Sfax, 3038 Sfax, Tunisia

E-mail: [email protected]Search for more papers by this author

First published: 19 July 2016

https://doi.org/10.1002/jhet.1759

Citations: 2

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Abstract

A one-step procedure is proposed for synthesizing 2-acyl benzopyrano[2,3-c]pyrazoles and 2-aryl benzopyrano[2,3-c]pyrazoles. The method is based on the condensation of 2-iminocoumarin-3-carbonitriles with hydrazides and hydrazines in acid as catalysts. A mechanism of reaction is proposed. All prepared compounds are identified by FTIR, ¹H NMR, ¹³C NMR, mass spectroscopy, and elemental analysis.

References and Notes

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Volume53, Issue5

September 2016

Pages 1356-1362

A Simple Efficient Procedure for the Synthesis of Benzopyrano[2,3-c]pyrazoles

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A Simple Efficient Procedure for the Synthesis of Benzopyrano[2,3-c]pyrazoles

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