A.J.Boulton A.R. Katritzky 's Advances in Heterocyclic Chemistry, Vol. 27 PDF

By A.J.Boulton A.R. Katritzky

ISBN-10: 0120206277

ISBN-13: 9780120206278

(from preface)Volume 27 includes 4 contributions. Black and Doyle talk about '' l-Azabicyclo[3.1.0]hexanes and Analogs with additional Heteroatom Substitution.'' half II of the therapy of ''Heteroaromatic Radicals'' via Hanson bargains with radicals with crew VI heteroatoms and completes the evaluate of the heteroaromatic loose radicals all started in quantity 25. In ''The 1,2- and 1,3-Dithiolium Ions.'' Lozac'h and Stavaux increase thus far the overview by means of Prinzbach and Futterer which seemed in 1966 in quantity 7 of this e-book. ultimately, Grimmett has up-to-date his personal evaluation of im-idazole chemistry which seemed in 1970 in quantity 12.

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Ward, J . Chem. Phys. 39, 852 (1963). R. Potashnik, C. R. Goldschmidt, and M. Ottolenghi, J . Phys. Chem. 73, 3170 (1969). Y. Achiba and K. Kimura, Chem. Phys. Lett. 19, 45 (1973). M. Irie, S. Irie, Y. Yamamoto, and K. Hayashi, J . Phys. Chem. 79, 699 (1975). ' I 3 I. Yamazaki, H. S. Mason, and L. H. Piette, J. Biol. Chem. 235, 2444 (1960). 'I4 I. Yamazaki and L. H. Piette, Biochim. Biophys. Acta 50, 62 (1961). 1 1 5 C. Lagercrantz, Acta Chem. Scand. 18, 562 (1964). 'I6 G . Foerster, W. Weis, and H.

T. Bowie and M. R. Feldman, J. Am. Chem. SOC. 99, 4721 (1977). 133 134 Sec. B] HETEROAROMATIC RADICALS, PART I1 47 pyrylium hexachloroantimonate is dissolved in anhydrous pyridine, it has been suggested that a charge-transfer complex of pyridine with the cation decomposes, yielding 29 and pyridine cation-radical. 146 Donor solvents lower the reduction potential ; the lowering has been suggested as a measure of the specific solvation of the triphenylpyrylium cation. The ECL observed when 29 is generated in the presence of rubrene cation-radical arises via the triplet state of rubrene.

Scand. 25, 2183 (1971). 86 ’’ ’* 42 [Sec. ^' The magnitudes of the splittings observed for the phenyl group, taken with various MO calculations, indicate the twist angle in the C3-Ph bond to be less than 25”. 14 _. 31 @ 0 (13) (14) 0(15) Interestingly, electrochemical reductions of alkylidenephthalides (14), which might conceivably give radicals isomeric in the heterocyclic moiety with 13, resulted either in the addition of two electrons or in ring scission, although phthalide radicals such as 15, which is not heteroaromatic, may be prepared.

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Advances in Heterocyclic Chemistry, Vol. 27 by A.J.Boulton A.R. Katritzky

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