(2Z,4E)-3-Methyl-5-(4,6,6-trimethyl-spiro[2.5]oct-4-en-5-yl)-penta-2,4-dienoic acid ethyl ester 在
lithium aluminium tetrahydride 作用下,
以
乙醚 为溶剂,
反应 3.5h,
生成 (2Z,4E)-3-methyl-5-(3,3-ethano-2,6,6-trimethyl-1-cyclohexen-1-yl)-2,4-pentadien-1-ol 、
(2E,4E)-3-methyl-5-(3,3-ethano-2,6,6-trimethyl-1-cyclohexen-1-yl)-2,4-pentadien-1-ol