A NMR STUDY OF SOME SYDNONES, ISOSYDNONЕS, AND ISOTHIOSYDNONЕS

Авторы

  • W. Bocian Institute of Organic Chemistry, Polish Academy of Sciences, 01-224 Warsaw 42, POB 58
  • J. Jaźwiński Institute of Organic Chemistry, Polish Academy of Sciences, 01-224 Warsaw 42, POB 58
  • О. Staszewska Institute of Organic Chemistry, Polish Academy of Sciences, 01-224 Warsaw 42, POB 58
  • J. W. Wiench Department of Chemistry, University of Surrey, Guildford, Surrey GU2, 5XH
  • L. Stefaniak Institute of Organic Chemistry, Polish Academy of Sciences, 01-224 Warsaw 42, POB 58
  • G. A. Webb Department of Chemistry, University of Surrey, Guildford, Surrey GU2, 5XH

Аннотация

Multinuclear 1H, 13С, 14N, 15N and 17O NMR data are presented for some sydnones, isosydnones, and isothiosydnones. The type of valence tautomerism shown in (Fig. 1) is not observed for the compounds studied. At high pH compounds 2 and 12 are found to undergo transformations. The more suitable NMR parameters are reported for establishing the
structures of mesoionic compounds containing three heteroatoms in the five-membered conjugated ring. Some ab initio GIAO calculation on a model structure of sydnones and related compounds have been performed.

How to Cite
Bocian, W.; Jaźwiński, J.; Staszewska, O.; Wiench, J. W.; Stefaniak, L.; Webb, G. A. Chem. Heterocycl. Compd. 1996, 32, 1358. [Khim. Geterotsikl. Soedin. 1996, 1581.]

For this article in the English edition, see DOI https://doi.org/10.1007/BF01169966

Загрузки

Опубликован

1996-11-25

Выпуск

№ 11/12 (1996)

Раздел

Оригинальные статьи