01552nas a2200205   4500008004100000022001400041245010000055210006900155260007300224300001200297490000800309520076700317653002301084653001701107653001801124653002401142100002801166700002901194856012301223       2008                        eng d  a0920-586100aPdCl2(bipy) complex - an efficient catalyst for Heck reaction in glycol-organic biphasic medium0 aPdCl2bipy complex an efficient catalyst for Heck reaction in gly  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcFEB  a353-3590 v1313 a<p>The Palladium complex PdCl2(bipy) (1) was found to be efficient in catalyzing the Heck reaction of aryl halides in a biphasic system comprising ethylene glycol along with an organic solvent. A proper tailoring of the organic phase ensured that the leaching of the catalyst to the organic phase was negligible. The catalyst was active for the Heck reaction of a number of olefins, aryl halides, in presence of organic and inorganic bases. The PdCl2(bipy) catalyst was stable and could be recycled for five times without any loss in activity and selectivity. A major advantage of this work is that unlike hitherto reported biphasic systems; it does not employ a water-soluble ligand to achieve biphasic catalysis. (c) 2007 Elsevier B.V. All rights reserved.</p>10aBiphasic catalysis10aC-C coupling10aHeck reaction10aPdCl2(bipy) complex1 aJagtap, Sangeeta, Vijay1 aDeshpande, Raj, Madhukar  uhttps://library.ncl.res.in/content/pdcl2bipy-complex-efficient-catalyst-heck-reaction-glycol-organic-biphasic-medium-001568nas a2200205   4500008004100000022001400041245009200055210006900147260010600216300001400322490000700336520074300343653003101086653001701117653001801134653002701152100002801179700002901207856012601236       2013                        eng d  a0040-403900aTrue water soluble palladium-catalyzed Heck reactions in aqueous-organic biphasic media0 aTrue water soluble palladiumcatalyzed Heck reactions in aqueouso  aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcMAY  a2733-27360 v543 a<p>A stable water soluble palladium catalyst has been demonstrated for the Heck reaction in a biphasic medium (water-non-polar organic solvent). Biphasic Heck reactions reported till now generally employ a non-polar solvent along with an aqueous polar water miscible organic solvent as the second phase. The efficiency of the Pd complex of TOTPS [Trisodium salt of tri-(ortho-tolyl) phosphine tri sulfonate] for the vinylation of different aryl iodides and olefins is demonstrated. The advantages of a co-solvent for this biphasic system have also been shown. The catalyst has been recycled efficiently retaining the activity with negligible loss of catalyst and without leaching of the Pd. (c) 2013 Elsevier Ltd. All rights reserved.</p>10aAqueous biphasic catalysis10aC-C coupling10aHeck reaction10aWater-soluble catalyst1 aJagtap, Sangeeta, Vijay1 aDeshpande, Raj, Madhukar  uhttps://library.ncl.res.in/content/true-water-soluble-palladium-catalyzed-heck-reactions-aqueous-organic-biphasic-media-0