A ferrocenyl palladacycle complex has been identified as a highly enantioselective catalyst for 1,2-additions of a diverse range of alkynes to imines (39 examples) providing nearly enantiopure propargylic amine derivatives. Compared to known methods turnover numbers could be increased by ca. 2–3 orders of magnitude.
Enantioselective Rhodium‐Catalyzed C−H Arylation Enables Direct Synthesis of Atropisomeric Phosphines
作者:Zexian Li、Weipeng Xu、Shuaishuai Song、Minyan Wang、Yue Zhao、Zhuangzhi Shi
DOI:10.1002/anie.202316035
日期:2024.2.19
A rhodium catalyst with chiral phosphine ligands enables the successful asymmetric C−H activation of phosphines using aryl and heteroaryl iodides, allowing for the construction of diverse and atroposelective phosphine ligands of practical significance.