Abstract
Through the strategy of water soluble N‐heterocyclic carbene (NHC) ligand, Pd‐catalyzed reactions were developed in aqueous media. Therefore, four new piperidoimidazolinium salts (1a‐d) consisting of sulfonate (a), esther (b, c) and carboxylic acid (d) functionalities and their water‐soluble Pd‐NHC complexes (2a‐d) were synthesized. The new compounds were characterized by elemental analysis, FTIR, TGA, UV–vis and NMR spectroscopy. The catalytic activities of water soluble Pd‐NHC complexes (2a‐d) were investigated using the Suzuki‐Miyaura (S‐M) reaction and the reduction of nitroarenes. We found that the water‐soluble polar or ionic groups on piperidoimidazolin‐2‐ylidine had an effect on the catalytic activity. The water‐soluble catalyst can be recycled efficiently and reused six times with only a very slight loss of catalytic activity.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
