Abstract
A new water soluble palladium(II) complex ( 2) derived from N, N, N′, N′-tetrakis(2-hydroxyethyl)ethylenediamine (edteH 4) ( 1) was synthesized in high yield and characterized by 1H, 13C, HMQC and COSY NMR spectroscopy. X-ray diffraction studies on a single crystal of 2 confirmed the cis square planar geometry; the edteH 4 ligand ( 1) is κ 2 (N,N)-coordinated with four pendant CH 2CH 2OH groups. This new complex [PdCl 2(edteH 4)] ( 2) and the previously synthesized triethanolamine complex [Pd(OCH 2CH 2N(CH 2CH 2OH) 2) 2] ( 3) were tested as catalysts for the Suzuki/Miyaura cross-coupling reaction of various aryl bromides with phenylboronic acid in water. Electronically activated aryl bromides, such as 4-bromoacetophenone and 4-bromobenzaldehyde undergo the cross-coupling with extremely high turnover numbers (TON) of up to 1,00,000 without organic solvent.
Sign-in/Register to access full text options 
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.
