Both the alpha-protons and carbons of beta-propiothiolactones exhibit atypical downfield chemical shifts. The alpha-protons of beta-propiothioiactones with no heteroatom at the alpha-position appear at 3.53-5.35 ppm, whereas the alpha-carbons appear at 56.9-86.2 ppm. The major cause of the unexpected deshielding effect was rationalized by assuming a through-space interaction between the occupied orbital of the alpha-carbon and the vacant orbital of sulfur, Copyright (C) 2000 John Wiley & Sons, Ltd.
Preparation of some derivatives of 3-mercaptopropionic acid, cystamine, and cysteamine and study of their radiation protection properties
作者:G. M. Airapetyan、P. G. Zherebchenko、V. M. Bystrova、Z. V. Benevolenskaya、N. D. Kuleshova、M. G. Lin'kova、O. V. Kil'disheva、I. L. Knunyants
DOI:10.1007/bf00912436
日期:1967.2
Sulfur-containing carboxylic acids. Communication 3. Synthesis of ?-(acetylthio)alkanoic acids amides
作者:T. P. Vasil'eva、V. M. Bystrova、M. G. Lin'kova、O. V. Kil'disheva、I. L. Knunyants
DOI:10.1007/bf00953097
日期:1983.3
Sulfur-containing heterocycles. 9. Reactions of l,2-dithiolan-3-ones with amines
作者:T. P. Vasil'eva、V. M. Bystrova、M. G. Lin'kova、O. V. Kil'disheva、I. L. Knunyants