Facile dihydroxylation of styrene using clay based catalysts

Boricha, A. B. ; Mody, H. M. ; Das, Amitava ; Bajaj, H. C. (1999) Facile dihydroxylation of styrene using clay based catalysts Applied Catalysis A: General, 179 (1-2). pp. 5-10. ISSN 0926-860X

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Official URL: http://www.sciencedirect.com/science/article/pii/S...

Related URL: http://dx.doi.org/10.1016/S0926-860X(98)00329-9


Dihydroxylation of styrene to 1-phenyl-1,2-dihydroxyethane is studied using iodosyl benzene as an oxidant and various modified bentonite clays (1 M-H-clay; proton exchange; Fe-exchanged clay; and Mn(III)-salen-exchanged clay) as catalyst. Catalytic activity was found to be higher for Fe-exchanged clay for intermediate epoxide formation. Studies clearly show that free Fe(III) species present in the interlayer space are responsible for its reactivity. The intermediate epoxide is converted to 1-phenyl-1,2-dihydroxy-ethane by Bronsted acidity of the clay and the water present in the reaction media.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Clay; Catalysis; Dihydroxylation; Styrene
ID Code:78527
Deposited On:20 Jan 2012 04:19
Last Modified:20 Jan 2012 04:19

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