Download Advances in Heterocyclic Chemistry, Vol. 95 by Alan Katritzky PDF

By Alan Katritzky

The definitive serial within the box - given that 1960. * offers updated fabric on a quick transforming into and hugely topical topic zone * comprises the most recent study masking a wide selection of heterocyclic issues * Written by way of major specialists and designed as a instruction manual for college kids and and educational researchers.

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Sec. D D. OF 4-HYDRAZONOETHYLPYRAZOL-3-ONES Timtcheva et al. (95DP131) (Scheme 50) studied the IR, NMR and the absorption and fluorescence spectra of 16 unsymmetrical azines 188 derived from the condensation of (E/Z)-4-(1-hydrazonoethyl)pyrazol-3-one 187 with various aldehydes 171. Comparisons with the electronic spectra of these compounds and the results of NMR and IR spectroscopy and also PPP-SCF-CI quantum chemical calculations suggest that the predominant tautomeric form in solution is enol 188.

C. [5-Oxo-1-arylpyrazol-3-yl]carbamic Acid 4-Nitrophenyl Ester. . . . . . D. 5-Hydroxy-1,2-diphenylpyrazol-3-one . . . . . . . . . . . . . . E. 5-Methyl-4,4-dinitro-2-(4-nitrophenyl)pyrazol-3-one . . . . . . . . . XII. Elimination . . . . . . . . . . . . . . . . . . . . . . . . A. Deamination via Diazotization . . . . . . . . . . . . . . . . B. Deformylation . . . . . . . . . . . . . . . . . . . . . .

C. With Ozone. . . . . . . . . . . . . . . . . . . . . . . D. With Hydrogen Peroxide or 3-Chloroperbenzoic Acid. . . . . . . . E. By Electrooxidation . . . . . . . . . . . . . . . . . . . . F. With Potassium and Copper Complexes . . . . . . . . . . . . . G. With Sodium Metaperiodate. . . . . . . . . . . . . . . . . H. With Lead Tetraacetate . . . . . . . . . . . . . . . .

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