- Selective oxidation of aromatic amines to nitro derivatives using potassium iodide-tert-butyl hydroperoxide catalytic system
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The direct oxidation of aromatic primary amines to the corresponding nitro compounds selectively in 47-98% yields has been achieved by using potassium iodide as catalyst and tert-butyl hydroperoxide as the external oxidant. The present catalytic system works well for both electron-rich and electron-poor substrates.
- Reddy, K. Rajender,Maheswari, C. Uma,Venkateshwar,Kantam, M. Lakshmi
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supporting information; experimental part
p. 93 - 96
(2009/08/07)
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- Reaction of Cerium(IV) Ammonium Nitrate with Aralkyl and Aromatic Ketones
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Fluoren-9-one on treatment with cerium(IV) ammonium nitrate (CAN) yields five compounds which have been identified as 3-nitro-; 2-nitro; 1,8-dinitro; 2,7-dinitro; and 2,7-dinitrofluoren-9-ones.Acetophenone on treatment with CAN, yields only benzoic acid while 2,4-dihydroxyacetophenone on similar treatment yields three compounds which have been identified as 2,4-dihydroxy-5-nitro; 2,4-dihydroxy-3-nitro; and 2,4-dihydroxy-3,5-dinitro-acetophenones.
- Chawla, H. Mohindra,Mittal, Ram S.,Johny, C. J.
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p. 992 - 993
(2007/10/02)
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- Kinetics and Mechanism of Oxidation of Fluoren-9-ol and Substituted Fluoren-9-ols by Bromamine-T
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The title reactions have been investigated in aq. acetic acid medium both in the presence and absence of perchloric acid.The reactions are first order each in and under both the conditions.There is unit dependence in perchloric acid.The effects of change in polarity of the solvent medium, added toluene-p-sulphonamide and sodium perchlorate have been studied.The reaction exhibits kinetic isotope effect (kH/kD = 2.2).Hammett ρ is found to be -2.8.Activation parameters have been evaluated.A mechanism consistent with rate data has been proposed.
- Gunasekaran, S.,Venkatasubramanian, N.
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p. 774 - 777
(2007/10/02)
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