8-Methyl-7,9-dioxo-1,2,3,3a,5a,6,6a,7,8,9,9a,10-dodecahydro-indeno[4,5-f]isoindole-4,5-dicarboxylic acid dimethyl ester 在
四氯苯醌 作用下,
以88%的产率得到8-Methyl-7,9-dioxo-1,2,3,6,6a,7,8,9,9a,10-decahydro-indeno[4,5-f]isoindole-4,5-dicarboxylic acid dimethyl ester