α-methyl-α-(2-propynyl)-3-methoxyphenylacetic acid ethyl ester 在
dichlorotricarbonylruthenium(II) dimer 作用下,
以
甲苯 为溶剂,
反应 14.0h,
生成 1,2-dihydro-5-methoxy-1-methyl-1-naphthalenecarboxylic acid ethyl ester 、 1,2-dihydro-7-methoxy-1-methyl-1-naphthalenecarboxylic acid ethyl ester