Ylide‐Functionalized Diisopropyl Phosphine (prYPhos): A Ligand for Selective Suzuki‐Miyaura Couplings of Aryl Chlorides
作者:Xiao‐Jing Wei、Bingxiang Xue、Jens Handelmann、Zhiyong Hu、Heidar Darmandeh、Viktoria H. Gessner、Lukas J. Gooßen
DOI:10.1002/adsc.202200321
日期:2022.10.4
The ylide-functionalized diisopropyl phosphine (prYPhos) promotes Pd-catalyzed Suzuki-Miyaura couplings of aryl chlorides and bromides with arylboronic acids. Using Pd2(dba)3/prYPhos as the catalyst and K2CO3 as the base, various (hetero)biaryls were synthesized in 45–98% yields at mild reaction conditions, tolerating sensitive functional groups and steric hindrance. The electron rich, sterically demanding
叶立德官能化的二异丙基膦 (prYPhos) 可促进 Pd 催化的芳基氯化物和溴化物与芳基硼酸的 Suzuki-Miyaura 偶联。使用 Pd 2 (dba) 3 /prYPhos 作为催化剂和 K 2 CO 3作为碱,在温和的反应条件下以 45-98% 的收率合成了各种(杂)联芳基化合物,耐受敏感的官能团和空间位阻。富电子、空间要求高的配体对卤化物和三氟甲磺酸盐具有较高的选择性。氯芳基三氟甲磺酸酯在氯化物处选择性偶联,留下固有的更具反应性的三氟甲磺酸酯基团。