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Wei J.,University of Sichuan | Wei J.,Institute of High Education | Zou L.,University of Sichuan | Zou L.,Institute of High Education
Chemistry Letters | Year: 2016

Au nanoparticles supported on MCM-41 mesoporous silica nanospheres were fabricated through a traditional simple immersion?reduction method. The obtained solid catalyst exhibited superior catalytic performance in the oxidation reaction of styrene using O2 as an oxidant, yielding as high as 41.9% of conversion and 71.7% of styrene oxide selectivity. The solid catalyst could be reused for at least six reaction cycles without a significant decrease in the activity and selectivity. Our study supplies an active, recoverable catalyst for the green transformation of styrene. © 2016 The Chemical Society of Japan.

Jiang W.,University of Sichuan | Jiang W.,Institute of High Education | Xu B.,University of Sichuan | Xu B.,Institute of High Education | And 7 more authors.
Journal of Chemical Sciences | Year: 2013

Two μ-alkoxide/acetate-bridged small molecule binuclear copper(II) complexes were synthesized, and used to promote the hydrolysis of a classic carboxylic acid ester, p-nitrophenyl picolinate (PNPP). Both binuclear complexes exhibited good hydrolytic reactivity, giving rise to ca. 15547- and 17462-fold acceleration over background value for PNPP hydrolysis at neutral conditions, respectively. For comparing, activities of the other two mononuclear analogues were evaluated, revealing that binuclear complexes show approximately 150- and 171-fold kinetic advantage over their mononuclear analogues. © Indian Academy of Sciences.

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