Enantiodivergent Formation of C–P Bonds: Synthesis of P-Chiral Phosphines and Methylphosphonate Oligonucleotides
作者:Dongmin Xu、Nazaret Rivas-Bascón、Natalia M. Padial、Kyle W. Knouse、Bin Zheng、Julien C. Vantourout、Michael A. Schmidt、Martin D. Eastgate、Phil S. Baran
DOI:10.1021/jacs.9b13898
日期:2020.3.25
Phosphorous Incorporation (PI, abbreviated Π) reagents for the modular, scalable, and stereospecific synthesis of chiral phosphines and methyl-phosphonate nucleotides are reported. Synthesized from trans-limonene oxide, this reagent class displays an unexpected reactivity profile and enables access to chemical space distinct from that of the Phosphorous-Sulfur Incorporation reagents previously disclosed
报告了用于手性膦和甲基膦酸核苷酸的模块化、可扩展和立体特异性合成的磷结合 (PI,缩写为 Π) 试剂。该试剂类由反式柠檬烯氧化物合成,显示出意想不到的反应性特征,并能够进入与之前公开的磷硫结合试剂不同的化学空间。在这里,适应性强的磷 (V) 支架能够连续添加碳亲核试剂以产生各种对映纯 CP 构建块。将三个碳亲核试剂添加到 Π,然后进行立体有择还原,得到有用的 P-手性膦;引入而不是单个甲基揭示了甲基膦酸酯寡核苷酸前体的首次立体定向合成。虽然两种 Π 对映异构体都可用,