Temperature-controlled selectivity in oxidation of 1-octene by using aqueous hydrogen peroxide in phase-boundary catalytic system

Authors:  Lai Sin Yuan, Rasidah Razali, Jon Efendi, Nor Aziah Buang, Hadi Nur

Abstract:
Temperature-controlled selectivity in oxidation of 1-octene by using aqueous hydrogen peroxide in phase-boundary catalytic system was demonstrated by using alkylsilylated-Ti(IV) salicylaldimine complex at a series of temperature (25–90 ^◦C). The catalyst was synthesized by titanium(IV) sulfate solution, salicylaldehyde, and 3-aminopropyltrimethoxysilane as the precursors and followed by the attachment of octadecyltrimethoxysilane. It was found that the reaction system resulted in high selectivity at low temperature. One suggests that the high selectivity in the oxidation of 1-octene by aqueous hydrogen peroxide was related to partitioning of alkylsilylated-titanium(IV) salicylaldimine complex in immiscible liquid–liquid phase boundary which is temperature dependent.

Keywords:
Phase-boundary catalysis
Oxidation
Immiscible liquid–liquid
Temperature-controlled selectivity
Alkylsilylated-Ti(IV) salicylaldimine complex

Published in: Applied catalysis A: General  (Volumes 460–461, Pages 1-132, 10 June 2013)

Publisher: Elsevier

ISSN Information: 0926-860X

Temperature-controlled selectivity in oxidation of 1-octene by using aqueous hydrogen peroxide in phase-boundary catalytic system

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