The tethered aminohydroxylation of cyclic allylic carbamates is described using catalytic amounts of potassium osmate. The mechanism of reaction involves formation of an imido-osmium complex which adds intramolecularly to alkenes with complete control of both regio- and stereoselectivity: the formation of syn-aminodiol motifs is now straightforward using this chemistry. Proof of the mechanism was obtained with an X-ray crystal structure of an azaglycolate osmate ester intermediate.

中文翻译：

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环状烯丙基氨基甲酸酯的束缚氨基羟基化（TA）。

使用催化量的钾酸钾描述了环状烯丙基氨基甲酸酯的束缚氨基羟基化。反应机理涉及亚胺-配合物的形成，该配合物在分子内添加到烯烃中，并完全控制区域和立体选择性：使用这种化学方法，合成顺式氨基二醇基序现在很简单。机理机理的证明是由氮杂乙醇酸松酸酯中间体的X射线晶体结构获得的。