The first catalytic asymmetric interrupted Attanasi reaction has been established. Under the catalysis of a bifunctional organocatalyst, the condensation of cyclic β-keto esters with azoalkenes readily occurred, delivering a variety of bicyclic fused 2,3-dihydropyrroles with vicinal quaternary stereogenic centers in good yields and with good to excellent enantioselectivities (27 examples, up to 96% yield and 95% ee).

中文翻译：

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催化不对称间断Attanasi反应：获得具有邻位季碳的稠合2,3-二氢吡咯

第一个催化不对称中断 Attanasi 反应已经建立。在双功能有机催化剂的催化下，环状 β-酮酯与偶氮烯烃很容易发生缩合，以良好的收率和良好至优异的对映选择性生成多种具有邻位季立体中心的双环稠合 2,3-二氢吡咯（27 个实例，高达 96% 的产率和 95% ee）。