(+/-)-tricarbonyl(1-4-η-{2-methyl-endo-5-(1-methylethyl)-1,3-cyclohexadiene})iron 、 (+/-)-tricarbonyl(1-4-η-{2-methyl-exo-5-(1-methylethyl)-1,3-cyclohexadiene})iron 在
aluminum chloride 、 carbon monoxide 作用下,
以
二氯甲烷 为溶剂,
生成
(+/-)-tricarbonyl(1,3,4,5-η-{exo-7-methyl-4-(1-methylethyl)-2-oxo-4-cycloheptene-1,3-diyl})iron 、
tricarbonyl((7R)-1,3,4,5-η-{4-methyl-endo-7-(1-methylethyl)-2-oxo-4-cycloheptene-1,3-diyl})iron