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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 36, 2006 - Issue 1
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Original Articles

Porous Calcium Hydroxyapatite as an Efficient Catalyst for Synthesis of Pyrazolines via 1,3‐Dipolar Cycoloaddition Under Solvent‐Free Microwave Irradiation

R. Atir Laboratoire de Chimie des Plantes et de Synthèse Organique et Bioorganique, Université Mohammed V‐Agdal, Faculté des Sciences, Morocco
,
S. Mallouk Laboratoire de Chimie des Plantes et de Synthèse Organique et Bioorganique, Université Mohammed V‐Agdal, Faculté des Sciences, Morocco
,
K. Bougrin Laboratoire de Chimie des Plantes et de Synthèse Organique et Bioorganique, Université Mohammed V‐Agdal, Faculté des Sciences, MoroccoCorrespondence[email protected] [email protected]
,
M. Soufiaoui Laboratoire de Chimie des Plantes et de Synthèse Organique et Bioorganique, Université Mohammed V‐Agdal, Faculté des Sciences, Morocco
&
A. Laghzizil Laboratoire de Chimie Physique Générale, Université Mohammed V‐Agdal, Faculté des Sciences, Morocco
Pages 111-120 | Received 23 May 2005, Published online: 21 Aug 2006
 
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Abstract

Adsorbed on porous calcium hydroxyapatite, 1,3‐dipolar cycloaddition of diphenylnitrilimine on olefins is readily catalyzed under solvent‐free microwaves irradiation. The pyrazolines are obtained in few minutes with high yields. Specific surface of porous calcium hydroxyapatite and microwaves effects are discussed.

Acknowledgments

Financial assistance of Ministry of Education, Government of Morocco (PROTARS III, D13/57) and CNRST‐Morocco are gratefully acknowledged.

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