An organic–inorganic hybrid material was synthesized via two steps by covalently anchoring N-functionalized proline derivative into the pore channels of MCM-41 silica

N-functionalized L-proline anchored MCM-41: A novel organic–inorganic hybrid material for solvent-free aminolysis of styrene oxide under microwave irradiation

Kioumars Aghapoor, Mostafa M Amini, Khosrow Jadidi, Hossein Reza Darabi

Abstract


A novel organic–inorganic hybrid material, namely L-prol-N-pMCM-41, was synthesized via two steps by covalently anchoring N-functionalized proline derivative (L-prol-N-pTMS) into the pore channels of MCM-41 silica. The prepared material was characterized by X-ray diffraction (XRD), thermogravimetric analysis (TGA), nitrogen adsorption–desorption isotherm, Brunauer–Emmett–Teller (BET) surface area analysis, and Fourier Transform Infrared spectroscopy (FTIR). The immobilized catalyst demonstrated moderate to high catalytic activity and excellent regioselectivity for the ring opening of styrene oxide with aniline derivatives under microwave irradiation and solvent-free conditions. The catalyst could be rapidly separated from the reaction mixture and reused up to five runs with good conversion and high regioselectivity.

 


Keywords


Organic-inorganic hybrid material; Heterogeneous catalysis; Regioselectivity; β-Amino alcohols

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DOI: http://dx.doi.org/10.17344/acsi.2014.755

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