Catalytic activities of NHC‐PdCl₂ species based on functionalized tetradentate imidazolium salt in three types of C‐C coupling reactions

Abstract

A functionalized tetradentate imidazolium salt 9,10‐bis{di[2′‐( N ‐ethylimidazolium‐1‐yl)ethyl]aminomethyl}anthracene tetrakis(hexafluorophosphate) ( 1 ) has been synthesized and characterized. The catalytic activity of the NHC‐PdCl 2 species formed by compound 1 and PdCl 2 was tested in Suzuki‐Miyaura, Heck‐Mizoroki and Sonogashira reactions. The results showed that this catalytic system was effective for above three types of C‐C coupling reactions.