02005nas a2200241   4500008004100000022001400041245011700055210006900172260000800241300001500249490000600264520116300270653001401433653002001447653001401467653002001481653002501501100002901526700002701555700003001582700002101612856013001633       2022                        eng d  a2365-654900aHighly efficient and reusable polymer supported palladium catalyst for copper free sonogashira reaction in water0 aHighly efficient and reusable polymer supported palladium cataly  cAPR  ae2021042730 v73 a<p>
	Development of a novel, greener and efficient heterogeneous catalytic system for copper free Sonogashira reaction in water is described. This novel catalyst can be easily prepared by a simple method through synthetic modification of nitrile group in Polyacrylonitrile (PAN) using monoethanolamine (MEA) followed by its complexation with palladium chloride (PdCl2). The resulting polymer Pd complex (mPAN-Pd) was characterized by means of Fourier Transform Infrared Spectroscopy (FTIR), Energy-Dispersive X-ray Spectroscopy (EDAX), Inductively Coupled Mass Spectrometry (ICP-MS) and X-ray Photo Electron Spectroscopy (XPS) analyses. mPAN-Pd was then explored as highly efficient heterogeneous catalyst for Sonogashira coupling reaction under copper and ligand free conditions in water affording the corresponding coupling products up to 97 % isolated yield. Moreover, the catalyst was recovered by simple filtration after the reaction and reused for next 5 cycles with excellent stability and activity. This is the first report on the use of ethanolamine modified PAN Pd (II) complex as an efficient heterogeneous catalyst for a coupling reaction.</p>
10acatalysis10agreen chemistry10aPalladium10aPolymer Support10aSonogashira coupling1 aSruthi, Pambingal, Rajan1 aNimmi, Puthan, Purayil1 aBabu, Sukumaran, Santhosh1 aAnas, Saithalavi  uhttps://library.ncl.res.in/content/highly-efficient-and-reusable-polymer-supported-palladium-catalyst-copper-free-sonogashira