Curtius-type rearrangement: A wide variety of N′-methyl-N′-phenyl acyl hydrazides were treated with oxygen, nitrogen, or sulfur nucleophiles in the presence of 2-(trimethylsilyl)phenyl triflate and CsF under mild conditions to afford structurally diverse carbamates or analogues. Importantly, complete retention of configuration was observed in the reaction of enantioenriched α-chiral alkanoyl hydrazides.

中文翻译：

---

在亲核试剂存在下，苯并炔促进的乙酰肼的库蒂斯型重排

Curtius型重排：在2-（三甲基甲硅烷基）苯基三氟甲磺酸酯和CsF存在下，在温和条件下，用氧，氮或硫亲核试剂处理多种N'-甲基-N'-苯基酰基酰肼，以提供结构多样的氨基甲酸酯或类似物。重要的是，在对映体富集的α-手性链烷酰基酰肼的反应中观察到构型的完全保留。