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Synthesis of Air- and Moisture-Stable, Storable Chiral Oxorhenium Complexes and Their Application as Catalysts for the Enantioselective Imine Reduction

机译:空气和水分稳定的可存储手性氧化or配合物的合成及其在对映选择性亚胺还原反应中的催化剂应用

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摘要

Air-/moisture-stable, crystalline, and storable chiral salicyloxazoline based oxorhenium(V) complexes have been synthesized and their catalytic application for the asymmetric reduction of ketimines using hydrosilane as hydride source is disclosed. A broad substrate scope, high yields, and excellent enantioselectivities (up to 99%) are attained. Furthermore, the syntheses of enantiopure -amino esters, - and -lactams, and isoindolinones have also been carried out using this methodology. Finally, the method has been applied to synthetic targets of pharmaceutical relevance, such as R-(+)-salsolidine and R-(+)-crispineA.
机译:合成了空气/水分稳定的,结晶的和可储存的手性水杨基恶唑啉基氧or(V)配合物,并公开了其在使用氢化硅烷作为氢化物源不对称还原酮亚胺方面的催化应用。获得了广泛的底物范围,高收率和优异的对映选择性(高达99%)。此外,对映体-氨基酯,-和-内酰胺和异吲哚啉酮的合成也已使用该方法进行。最后,该方法已应用于具有药物相关性的合成靶标,例如R-(+)-沙丁胺碱和R-(+)-crispineA。

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