ppm Pd-catalyzed, Cu-free Sonogashira couplings in water using commercially available catalyst precursors
作者:Bo Jin、Fabrice Gallou、John Reilly、Bruce H. Lipshutz
DOI:10.1039/c8sc05618h
日期:——
A new catalyst that derives from commercially available precursors for copper-free, Pd-catalyzed Sonogashira reactions at the sustainable ppm level of precious metal palladium under mild aqueous micellar conditions has been developed. Both the palladium pre-catalyst and ligand are commercially available, bench stable, and highly cost-effective. The catalyst is applicable to both aryl- and heteroaryl-bromides
一种新型催化剂源自市售前体,可在温和的水性胶束条件下以可持续的 ppm 级贵金属钯进行无铜、Pd 催化的 Sonogashira 反应。钯预催化剂和配体均可市售,工作台稳定且成本效益高。该催化剂适用于作为离析物的芳基溴和杂芳基溴。可以耐受多种官能团,并且水性反应介质可以循环利用。讨论了与活性药物成分(ponatinib)相关的关键中间体的应用。