2-[2-[(2E,4E)-3-Methyl-5-(2,6,6-trimethyl-cyclohex-1-enyl)-penta-2,4-dien-(Z)-ylidene]-cyclohex-(Z)-ylidene]-ethanol 在
manganese(IV) oxide 作用下,
以
Petroleum ether 为溶剂,
反应 1.0h,
以80%的产率得到[2-[(2E,4E)-3-Methyl-5-(2,6,6-trimethyl-cyclohex-1-enyl)-penta-2,4-dien-(Z)-ylidene]-cyclohex-(Z)-ylidene]-acetaldehyde