[reaction: see text] Rhodium and copper acyl nitrenoids are likely intermediates in amidoglycosylation reactions of allal 3-carbamates. Iodine(III)-mediated nitrenoid formation, interaction of this species with the glycal enol ether pi-system, and highly beta-stereoselective glycosylation occur in a one-pot process that requires no additional Lewis acid activation.
[反应:见正文]
铑和
铜的酰基亚
硝基化合物可能是3-
氨基甲酸酯的酰胺基糖基化反应的中间体。
碘(III)介导的类
固醇形成,该物质与糖基烯醇醚pi系统的相互作用以及高度β-立体选择性的糖基化都可以通过一锅法完成,无需额外的
路易斯酸活化。