Electron impact induced water elimination from hydroxyamides. 2—N-acetyl- andN-benzoyl-4a-hydroxydecahydroquinoline andN-Methyl-4a-hydroxy-2-oxodecahydroquinoline
作者:B. Steiner、D. Schumann、A. Naumann
DOI:10.1002/oms.1210180809
日期:1983.8
AbstractElectron impact induced water elimination from the metastable molecular ions of N‐acetyl‐ and N‐benzoyl‐4a‐hydroxydecahydroquinoline mainly follows a formal [1,2] elimination. The initiating and ratedetermining step in the reaction is the hydrogen rearrangement from C‐8a onto the carbonyl group. The transferred hydrogen is subsequently lost, together with the hydroxyl group. The almost complete absence of H2O loss from both diastereomers of N‐methyl‐4a‐hydroxy‐2‐oxodecahydroquinoline confirms that the reaction can only proceed when the carbonyl group is able to function as ‘hydrogen carrier’ by occupying positions in the vicinity of both a hydrogen and the hydroxyl function.