(1R,4S,8aR)-5-Hydroxy-6-methoxy-4,8a-dimethyl-8-oxo-1,4,8,8a-tetrahydro-naphthalene-1-carboxylic acid methyl ester 在
氧气 作用下,
以
氯仿 、
乙酸乙酯 为溶剂,
反应 20.0h,
以70%的产率得到8a-hydroperoxy-2-methoxy-5-(methoxycarbonyl)-4a,8-dimethyl-4a,5,8,8a-tetrahydro-1,4-naphthoquinone