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Studies on vanadium catalyzed direct hydroxylation of aromatic hydrocarbons using hydrogen peroxide as oxidant

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Abstract.
Direct hydroxylation of aromatic hydrocarbons, viz. benzene, toluene and anisole to phenol, cresols and
methoxyphenols respectively has been studied by using hydrogen peroxide as oxidant and vanadium
based systems such as vanadyl tetraphenoxyphthalocyanine, VO(acac)2, 20% V2O5/Al2O3, 14% V2O5/TiO2,
11% V2O5/ZiO2 as catalysts in acetonitrile under biphasic reaction conditions. Among the various
vanadium-based catalysts studied, vanadyl tetraphenoxyphthalocyanine (VOPc) was found to be best
from conversion as well as selectivity for hydroxy compounds points of view. The effect of various
reaction parameters such as H2O2/substrate molar ratio, reaction temperature, solvent and catalyst
concentration was systematically studied.

Keywords:
Hydroxylation
Benzene
Toluene
Anisole
Vanadyl tetraphenoxyphthalocyanine

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Informasi Detail

Judul Seri

Catalysis Today

No. Panggil

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Penerbit

London : Elsevier B.V.., 2009

Deskripsi Fisik

Catalysis Today 141 (2009) 211–214

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

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