Regio- and <i>Trans</i>-Selective Ni-Catalyzed Coupling of Butadiene, Carbonyls, and Arylboronic Acids to Homoallylic Alcohols under Base-Free Conditions
作者:Yu-Qing Li、Guang Chen、Shi-Liang Shi
DOI:10.1021/acs.orglett.1c00488
日期:2021.4.2
We herein report a Ni-catalyzed three-component coupling of 1,3-butadiene, carbonyl compounds, and arylboronic acids as a general synthetic approach to 1,4-disubstituted homoallylic alcohols, an important class of compounds, which have previously not been straightforward to access. The reaction occurs efficiently using a Ni(cod)2 catalyst without any external base and ligand at ambient temperature
我们在本文中报道了Ni催化的1,3-丁二烯,羰基化合物和芳基硼酸的三组分偶联,作为1,4-二取代的均丙醇的重要合成方法,这是一类重要的化合物,以前并不简单访问。使用Ni(cod)2催化剂可在环境温度下有效地进行反应,而无需使用任何外部碱和配体,并且可在一次操作中对原料丁二烯进行高度区域选择性和反选择性的1,4-二叉官能化。这个简单而实用的协议可以应用于广泛范围的基材。中性条件显示了对高度碱敏感的官能团的非凡耐受性。