By Alan R. Katritzky

Proven in 1960, Advances in Heterocyclic Chemistry is the definitive serial within the area-one of serious value to natural chemists, polymer chemists, and such a lot organic scientists. each 5th quantity ofAdvances in Heterocyclic Chemistry features a cumulative topic index.

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J. P. Johnson, G. K. MacLean, J. S. White, Can. J. , 67, 1687 (1989). 34. D. Bielefeld and A. Haas, Chem. , 116, 1257 (1983). 35. T. M. Klapötke, B. Krumm and K. Polborn, J. Am. Chem. , 126, 710 (2004). 36. (a) T. M. Klapötke, B. Krumm, P. Mayer, H. Piotrowski, O. P Ruscitti and A. Schiller, Inorg. , 41, 1184 (2002); (b) T. M. Klapötke, B. Krumm, P. Mayer and I. Schwab, Angew. , Int. Ed. , 42, 5843 (2003); (c) R. Hiages, J. A. Boatz, A. Vij, M. Gerken, S. Schneider, T. Schroer and K. O. Christe, Angew.

Sheldrick, Chem. , 118, 3781 (1985). 44. P. Del Bel Belluz, A. W. Cordes, E. M. Kristof, P. V. Kristof, S. W. Liblong and R. T. Oakley, J. Am. Chem. , 111, 6147 (1989). 45. E. Hey, C. Ergezinger and K. Dehnicke, Z. , 44B, 205 (1989). 46. (a) V. Chandrasekhar, T. Chivers, J. F. Fait and S. S. Kumaravel, J. Am. Chem. , 112, 5373 (1990); (b) V. Chandrasekhar, T. Chivers, S. S. Kumaravel, M. Parvez and M. N. S. Rao, Inorg. , 30, 4125 (1991). 47. T. Chivers, D. D. Doxsee and R. W. Hilts, Preparation and Some Reactions of the Folded P2N4S2 Ring, in J.

S(NtBu)4]2-,22 cf. [SO4]2-. 0%). Consequently, NMR studies using these nuclei can provide useful information for Se–N and Te–N systems. 36 A Guide to Chalcogen–Nitrogen Chemistry The 77Se NMR chemical shifts of Se–N compounds cover a range of >1500 ppm and the value of the shift is characteristic of the local environment of the selenium atom. As a result, 77Se NMR spectra can be used to analyse the composition of a complex mixture of Se–N compounds. , R = tBu). 3). Fig. 2 77Se NMR spectrum for the products of the decomposition of tBuN=Se=NtBu in toluene at 20°C after 2 days [Reproduced with permission from Inorg.

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