Iminium Salts by Meerwein Alkylation of Ehrlich’s Aldehyde
| Autor: | Herwig Schottenberger, Gerhard Laus, Carmen Froschauer, Hedda K. Weber, Volker Kahlenberg |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
chemistry.chemical_classification
quinone iminium salt General Chemical Engineering Iminium Ehrlich’s aldehyde Alkylation Condensed Matter Physics quinoid Medicinal chemistry Aldehyde Quinone Inorganic Chemistry Benzaldehyde chemistry.chemical_compound Hydrolysis chemistry Reagent lcsh:QD901-999 Organic chemistry General Materials Science lcsh:Crystallography Oxonium ion alkylation |
| Zdroj: | Crystals, Vol 3, Iss 1, Pp 248-256 (2013) Crystals Volume 3 Issue 1 Pages 248-256 |
| ISSN: | 2073-4352 |
| Popis: | 4-(Dimethylamino)benzaldehyde is alkylated at the N atom by dialkyl sulfates, MeI, or Me3O BF4. In contrast, ethylation by Et3O BF4 occurs selectively at the O atom yielding a quinoid iminium ion. 4-(Diethylamino)benzaldehyde is alkylated only at O by either Et or Me oxonium reagent. The iminium salts are prone to hydrolysis giving the corresponding hydrotetrafluoroborates. Five crystal structures were determined. |
| Databáze: | OpenAIRE |
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