Amazing diazo: The title reaction leads to highly functionalized diazo compounds in good yields with excellent enantioselectivities (see scheme; Boc=tert‐butoxycarbonyl). The utility of the products was demonstrated by the rapid synthesis of a number of optically pure nitrogen heterocycles. The key to this process was the use of 2,2,2‐trifluoroethyl diazoacetate as a superior nucleophilic reagent.

中文翻译：

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使用重氮酯作为亲核试剂构建对映体富集的重氮化合物：手性路易斯碱催化

惊人的重氮化合物：标题反应可生成高官能度的重氮化合物，并具有优异的对映选择性（参见方案； Boc =叔丁氧羰基）。通过快速合成许多光学纯的氮杂环，证明了产品的实用性。该过程的关键是使用2,2,2-三氟乙基重氮乙酸酯作为高级亲核试剂。