Suzuki–Miyaura Cross-Coupling of Potassium Dioxolanylethyltrifluoroborate and Aryl/Heteroaryl Chlorides
作者:Nicolas Fleury-Brégeot、Daniel Oehlrich、Frederik Rombouts、Gary A. Molander
DOI:10.1021/ol400320q
日期:2013.4.5
A robust and efficient protocol for the introduction of the dioxolanylethyl moiety onto various aryl and heteroaryl halides has been developed, providing cross-coupling yields up to 93%. Copper-catalyzed borylation of 2-(2-bromoethyl)-1,3-dioxolane with bis(pinacolato)diboron followed by treatment with potassium bifluoride provides the key organotrifluoroborate reagent.
已经开发出一种将二氧戊环基乙基部分引入各种芳基和杂芳基卤化物的稳健而有效的方案,提供高达 93% 的交叉偶联产率。铜催化的 2-(2-溴乙基)-1,3-二氧戊环与双(频哪醇)二硼硼化,然后用氟化氢钾处理,提供了关键的有机三氟硼酸盐试剂。