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Water‐Soluble Palladium(II) Sulfonated Thiosemicarbazone Complexes: Facile Synthesis and Preliminary Catalytic Studies in the Suzuki–Miyaura Cross‐Coupling Reaction in Water
Author(s) -
Matsinha Leah C.,
Mao Jincheng,
Mapolie Selwyn F.,
Smith Gregory S.
Publication year - 2015
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201500588
Subject(s) - chemistry , catalysis , palladium , electrospray ionization , coupling reaction , semicarbazone , mass spectrometry , nuclear magnetic resonance spectroscopy , solubility , inorganic chemistry , polymer chemistry , organic chemistry , chromatography
A series of mono‐ and binuclear sulfonated thiosemicarbazone Pd II complexes have been synthesised and characterised using nuclear magnetic resonance spectroscopy, infrared spectroscopy, electrospray ionisation mass spectrometry and elemental analysis. The complexes display excellent water‐solubility at room temperature and in addition, 1 H and 31 P{ 1 H} NMR spectroscopic experiments reveal that the mononuclear complex 4 is very stable in water at 70 °C. Consequently, preliminary catalytic experiments show the water‐soluble complexes to be efficient catalyst precursors in the Suzuki–Miyaura cross‐coupling reaction in water. No evidence of homo‐coupling was observed and the water‐soluble complexes demonstrated versatility in coupling substrates containing various functional groups.