Absolute Configuration Assignment of a Paraconic Acid Derivative via Vibrational Circular Dichroism Spectroscopy and Density Functional Theory Calculation
作者:Sara Meninno、Paola Rizzo、Sergio Abbate、Giovanna Longhi、Giuseppe Mazzeo、Guglielmo Monaco、Alessandra Lattanzi、Riccardo Zanasi
DOI:10.1002/chir.22553
日期:2016.2
Density functional theory calculation of the vibrational circular dichroism spectrum was used to assign the absolute configuration of an all‐carbon quaternary β‐stereocenter of a γ‐butyrolactone recently synthesized through an asymmetric organocatalytic tandem aldol/lactonization sequence. Comparison with the experimental spectrum is satisfactory, on account of the fact that spectroscopic features
振动圆二色性光谱的密度泛函理论计算被用来分配通过不对称有机催化串联醛醇/内酯化序列合成的γ-丁内酯全碳四元β-立体中心的绝对构型。由于存在多个构象体,因此光谱特征较弱,因此与实验光谱的比较令人满意。结果,将(R)绝对构型分配给(+)光学异构体。手性28:110–115,2016。©2015 Wiley Periodicals,Inc.