Research Article
Ruthenium(III) Catalysis in Perborate Oxidation of 5-Oxoacids
Table 2
Ruthenium(III) catalysis of perborate oxidation of substituted 5-oxo acidsa.
| 5-Oxoacid |
103 (s−1) |
105[Catalyst] (mol dm−3) | Ru(III) | 0 | 2.0 | 5.0 | 8.0 | 10.0 | 15.0 | 20.0 |
| p-OCH3 | 8.63 | 12.43 | 16.20 | 20.34 | 23.28 | 29.83 | 35.88 | p-CH3 | 4.31 | 6.21 | 8.10 | 10.16 | 11.64 | 14.91 | 17.93 | p-C6H5 | 3.14 | 4.53 | 5.91 | 7.42 | 8.49 | 10.88 | 13.08 | –H | 2.83 | 4.08 | 5.32 | 6.68 | 7.65 | 9.80 | 11.79 | p-Cl | 0.87 | 1.27 | 1.64 | 2.06 | 2.35 | 3.02 | 3.63 | p-Br | 0.44 | 0.63 | 0.83 | 1.04 | 1.20 | 1.53 | 1.85 | m-NO2 | 0.21 | 0.31 | 0.41 | 0.51 | 0.59 | 0.76 | 0.91 |
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a103[Perborate = 1.0 mol dm−3; 102[5-oxoacid = 4.0 mol dm−3; 102[H+] = 9.88 mol dm−3; HOAc—H2O = 1 : 1 % (v/v); temp. = 308 K.
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