| 摘要 |
1. Process for the manufacture of 3,5,5-trimethyl-4-[(E)-3-oxo-1-butenyl]-2-cyclohexen-1- -one of the formula see diagramm : EP0036651,P6,F1 characterized by oxidizing alpha-ionone of the formula see diagramm : EP0036651,P6,F2 in concentrated acetic acid with oxygen or an oxygen-containing gas using a cobalt acetate/bromide catalyst. |
