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Natural Phosphate Modified with Sodium Nitrate: New Efficient Catalyst for the Construction of a Carbon-Sulfur and Carbon-Nitrogen Bonds

[ Vol. 2 , Issue. 4 ]

Author(s):

Mohamed Zahouily, Hind Charki, Younes Abrouki, Bahija Mounir, Bouchaib Bahlaouan, Ahmed Rayadh and Said Sebti   Pages 354 - 359 ( 6 )

Abstract:


The modification on natural phosphate (NP) with sodium nitrate by calcination catalyzed Michael addition of mercaptans and amines to chalcone derivatives with high yields under mild reaction conditions. By-products of usual undesirable reaction in Michael condensation such as 1,2-addition, bis-addition and polymerization are not observed. The work-up procedure is simplified by simple filtration with the use of Na/NP-2. This catalyst is used for the facile synthesis of β-amino acid and β-amino diacid under heterogeneous conditions.

Keywords:

natural phosphate, carbon-sulfur bond, carbon-nitrogen bond, amino acid, amino diacid, heterogeneous catalysis, recyclable catalyst

Affiliation:

Laboratoire de Catalyse, Synthese et Environnement, UFR de Chimie Appliquee, Universite Hassan II, Faculte des Sciences et Techniques, Mohammadia B. P. 146, 20650 Maroc.



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