Palladacycle complexes of (S)-4-iso-propyl-2-phenyl-2-oxazoline: Synthesis, crystal structures and catalytical methanolysis of pesticide

Two pyridine coordinated cyclopalladated complexes: (S)-chloro{2-[2-(4-iso-propyl)oxazolinyl]phenyl-C,N}(4-R-pyridine)palladium(II) (R = H, 1, R = NMe2, 2), have been synthesized and structurally characterized. Both complexes show that the palladium atom displays the expected square planar coordination with the pyridine and oxazoline nitrogen atoms positioned trans to one another. These two palladacycles can effectively catalyze the methanolysis of pesticide fenitrothion with an acceleration above 106–107 folds compared to that of the methoxide-catalyzed background reaction at image values of 10.80 and room temperature.