Stereoelectronic Basis for the Kinetic Resolution of N-Heterocycles with Chiral Acylating Reagents
作者:Sheng-Ying Hsieh、Benedikt Wanner、Philip Wheeler、André M. Beauchemin、Tomislav Rovis、Jeffrey W. Bode
DOI:10.1002/chem.201402818
日期:2014.6.10
The kinetic resolution of N‐heterocycles with chiral acylating agents reveals a previously unrecognized stereoelectronic effect in amine acylation. Combined with a new achiral hydroxamate, this effect makes possible the resolution of various N‐heterocycles by using easily prepared reagents. A transition‐state model to rationalize the stereochemical outcome of this kinetic resolution is also proposed
N-杂环与手性酰化剂的动力学拆分揭示了胺酰化中以前未被认识的立体电子效应。与新的非手性异羟肟酸酯相结合,这种效应使得通过使用易于制备的试剂来拆分各种N-杂环成为可能。还提出了一种过渡态模型来合理化这种动力学解析的立体化学结果。