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Aerobic Oxidation of Benzene to Biphenyl Using a Pd(II)/Molybdovanadophosphoric Acid Catalytic System
Author(s) -
Yokota Takahiro,
Sakaguchi Satoshi,
Ishii Yasutaka
Publication year - 2002
Publication title -
advanced synthesis and catalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.541
H-Index - 155
eISSN - 1615-4169
pISSN - 1615-4150
DOI - 10.1002/1615-4169(200209)344:8<849::aid-adsc849>3.0.co;2-q
Subject(s) - biphenyl , chemistry , benzene , catalysis , yield (engineering) , oxidative coupling of methane , ton , molecular oxygen , oxidative phosphorylation , palladium , oxygen , medicinal chemistry , organic chemistry , biochemistry , metallurgy , fishery , biology , materials science
The oxidative coupling reaction of benzene to biphenyl was examined by the use of a Pd(OAc) 2 /molybdovanadophosphoric acid/O 2 system under mild conditions. Pd(OAc) 2 combined with two different types of molybdovanadophosphoric acids exhibited the highest catalytic activity for the biphenyl synthesis. The best turn‐over number (TON) of Pd(OAc) 2 and the yield of biphenyl reached 109 and 14.3% based on the benzene used, respectively. The rate‐determining step of the coupling was found to be the reoxidation step of the reduced molybdovanadophosphoric acid by molecular oxygen.