Reactions between enaminones and enones. Part 2. C versus N-Alkylation with cyclohex-2-enone. Structure confirmation by reduction of a dienaminone derivative of dehydrated dimedone dimer
作者:Ibrahim Chaaban、John V. Greenhill、Mohamed Ramli
DOI:10.1039/p19810003120
日期:——
Primary and secondary enaminones derived from cyclohexane-1,3-dione, dimedone, and acetylacetone react with cyclohexenone to give exclusively C-alkylated derivatives. In every case the products form carbinolamines which exist as 1-hydroxy-2-azacyclo[3.3.1]nonenes. This was confirmed in some examples by formation of an extra ring between nitrogen and oxygen. A series of dienaminones were prepared from
衍生自环己烷-1,3-二酮,二甲酮和乙酰丙酮的伯和仲烯胺酮与环己烯酮反应,仅得到C-烷基化衍生物。在每种情况下,产物形成甲醇胺,它们以1-羟基-2-氮杂环[3.3.1]壬烯的形式存在。在一些实例中,这通过在氮和氧之间形成额外的环来证实。由2-(5,5-二甲基-3-氧代环己基-1-烯基)-5,5-二甲基环己烷-1,3-二酮制备了一系列的二烯酮,并将其中一个还原成与其相同的氮杂烯酮。C-烷基化。