作者:Zining Wang、Xiaxia He、Rui Zhang、Ge Zhang、Guoxing Xu、Qian Zhang、Tao Xiong、Qian Zhang
DOI:10.1021/acs.orglett.7b01135
日期:2017.6.16
A mild and efficient approach for highly regio- and enantioselective copper-catalyzed hydroboration of 1,1-diaryl substituted alkenes with bis(pinacolato)diboron (B2Pin2) was developed for the first time, providing facile access to a series of valuable β,β-diaryl substituted boronic esters with high enantiomeric purity. Moreover, this approach could also be suitable for hydroboration of α-alkyl styrenes
首次开发了一种温和有效的方法,用于高区域和对映选择性的铜催化的双(频哪醇碳)二硼烷(B 2 Pin 2)对1,1-二芳基取代的烯烃进行硼氢化反应,从而可以轻松地获得一系列有价值的具有高对映体纯度的β,β-二芳基取代的硼酸酯。而且,该方法也可能适合于α-烷基苯乙烯的硼氢化,以合成对映体富集的β,β-芳烷基取代的硼酸酯。革兰氏反应,立体定向衍生化以及重要的抗毒蕈碱药物(R)-托特罗定用于简明的对映选择性合成的应用进一步凸显了这种新方法的吸引力。