Eine Methode zur C-Methylierung cyclischer β-Dicarbonyl-Verbindungen / A Method for the C-Methylation of Cyclic β-Dicarbonyl Compounds
Open Access
- 1 January 1982
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung B
- Vol. 37 (1) , 105-107
- https://doi.org/10.1515/znb-1982-0117
Abstract
Cyclic β-dicarbonyl compounds (1,4,7,10) were reacted with either aniline or urea in the presence of trimethoxymethane to give the enamines 2, 5, 8 and 11, resp. The latter were reduced with hydrogen over palladium-charcoal or with the dimethylamine-boron-hydride complex to give the C-methylated β-dicarbonyl compounds 3,6,9 and 12, resp. in moderatly to good overall yields.Keywords
This publication has 0 references indexed in Scilit: