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Riadi Y, Abrouki Y, Mamouni R, et al. New eco-friendly animal bone meal catalysts for preparation of chalcones and aza-Michael adducts. Chem Cent J. 2012;6(1):60doi: 10.1186/1752-153X-6-60.
Riadi, Y., Abrouki, Y., Mamouni, R., El Haddad, M., Routier, S., Guillaumet, G., & Lazar, S. (2012). New eco-friendly animal bone meal catalysts for preparation of chalcones and aza-Michael adducts. Chemistry Central journal, 6(1), 60. https://doi.org/10.1186/1752-153X-6-60
Riadi, Yassine, et al. "New eco-friendly animal bone meal catalysts for preparation of chalcones and aza-Michael adducts." Chemistry Central journal vol. 6,1 (2012): 60. doi: https://doi.org/10.1186/1752-153X-6-60
Riadi Y, Abrouki Y, Mamouni R, El Haddad M, Routier S, Guillaumet G, Lazar S. New eco-friendly animal bone meal catalysts for preparation of chalcones and aza-Michael adducts. Chem Cent J. 2012 Jun 21;6(1):60. doi: 10.1186/1752-153X-6-60. PMID: 22721409; PMCID: PMC3536715.
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Chem Cent J. 2012 Jun 21;6(1):60. doi: 10.1186/1752-153X-6-60.

New eco-friendly animal bone meal catalysts for preparation of chalcones and aza-Michael adducts.

Chemistry Central journal

Yassine Riadi, Younes Abrouki, Rachid Mamouni, Mohammadine El Haddad, Sylvain Routier, Gérald Guillaumet, Saïd Lazar

Affiliations

  1. Laboratoire de Biochimie, Environnement & Agroalimentaire, URAC 36, Université Hassan II Mohammedia-Casablanca, Mohammedia, BP 146, 20650, Morocco. [email protected].

PMID: 22721409 PMCID: PMC3536715 DOI: 10.1186/1752-153X-6-60

Abstract

UNLABELLED: Two efficient reactions were successfully carried out using Animal Bone Meal (ABM) and potassium fluoride or sodium nitrate doped ABMs as new heterogeneous catalysts under very mild conditions. After preparation and characterization of the catalysts, we first report their use in a simple and convenient synthesis of various chalcones by Claisen-Schmidt condensation and then in an aza-Michael addition involving several synthesized chalcones with aromatic amines. All the reactions were carried out at room temperature in methanol; the chalcone synthesis was also achieved in water environment under microwave irradiation. Doping ABM enhances the rate and yield at each reaction. Catalytic activities are discussed and the ability to re-use the ABM is demonstrated.

RESULTS: For Claisen-Schmidt the use of ABM alone, yields never exceeded 17%. In each entry, KF/ABM and NaNO3/ABM (79-97%) gave higher yields than using ABM alone under thermic condition. Also the reaction proceeded under microwave irradiation in good yields (72-94% for KF/ABM and 81-97% for NaNO3/ABM) and high purity. For aza-Michael addition the use of ABM doped with KF or NaNO3 increased the catalytic activity remarkably. The very high yields could be noted (84-95% for KF/ABM and 81-94% for NaNO3/ABM).

CONCLUSION: The present method is an efficient and selective procedure for the synthesis of chalcones an aza-Michael adducts. The ABM and doped ABMs are a new, inexpensive and attractive solid supports which can contribute to the development of catalytic processes and reduced environmental problems.

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