An efficient, stereoselective Michaelâaldol cascade for the one-pot construction of the perhydro indol-2-one bicyclic ring system using an acetate protected doubly-activated pyrrole-2-one pro-nucleophile and α,β-unsaturated carbonyl compounds has been developed. Initiated by a methoxide deacetylation in methanol at room temperature, the cascade is easy to perform, stereoselective, efficient and broad in scope to this synthetically relevant structure.
已开发出一种高效、立体选择性迈克尔-阿尔多级联反应,用于使用
乙酸酯保护的双活化
吡咯-2-酮亲核前体和α,β-不饱和羰基化合物,在一锅法中构建全氢
吲哚-2-酮双环系统。该级联反应由
甲醇中的
甲醇脱乙酰基反应在室温下启动,易于操作,具有立体选择性,效率高,适用范围广,可用于合成相关结构。