Etude par RMN du mecanisme des reactions de transcomplexation entre les sels de chloroiminium (reactifs de vilsmeier) et les amides ou thioamides. Appl |
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| Authors: | M. Helbert J.P. Renou M.L. Martin |
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| Affiliation: | Laboratoire de Chimie Organique Physique, ERA CNRS No. 315, Université de Nantes, 44072 Nantes, France |
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| Abstract: | Previous studies have established the existence of an acid-base equilibrium between the Vilsmeier complex (Me2NCHCl)+ B? and dimethylformamide. It is shown that the behaviour of chloroiminium salts as Lewis acids towards amides or thioamides is a general phenomenon. When the acids and bases are differently substituted, the reaction may have synthetic applications. |
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