4-(4-toluenesulfonyloxy)coumarin 在
bis-triphenylphosphine-palladium(II) chloride 作用下,
以
苯 为溶剂,
生成
11-(tert-butyl)-8,9-dimethyl-6H-cycloocta[c]chromen-6-one 、 (1SR,2aSR,8bRS)-8b-(3,3-dimethylbut-1-yn-1-yl)-1,2,2a,8b-tetrahydro-1-methyl-1-(prop-1-en-2-yl)-3H-cyclobuta[c]chromen-3-one