Abstract
Microporous AFI type silicoaluminophosphate (SAPO-5) having aminosilane functionality in the framework was prepared by in-situ (direct co-condensation) approach under hydrothermal conditions. The template (structure directing agent) presents within the channels of synthesized aminosilane modified SAPO-5 framework was selectively removed by a unique method using acidic ethanol extraction. Before and after the template extraction, presence of AFI type phase of SAPO-5 was confirmed through powder XRD pattern. The complete removal of template from the channels of framework was confirmed through FT-IR, 13C MAS NMR and N2 sorption studies. The covalent bonding of aminosilane functionality within the organic–inorganic hybrid SAPO-5 framework was evident through 29Si MAS NMR and 13C MAS NMR studies. The final material was utilized for selective synthesis of 1-phenoxy-2-propanol (99%) via propylene oxide ring opening with phenol under solvent free conditions in liquid phase medium.
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