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Yilmaz, Veysel T.; Icsel, Ceyda; Turgut, Omer R.; Aygun, Muhittin; Evren, Enes; Ozdemir, Ismail
{ "DOI": "10.1016/j.ica.2019.119220", "abstract": "A number of new Pd(II) saccharinate (sac) complexes bearing a range of phenyl (Ph), cyclohexyl (Cy) and alkyl (Me and Et) substituted tertiary phosphine ligands with systematically changing electronic and steric properties, namely trans-[PdCl(sac)(L)(2)] (L = PPh3 (1); PPh2Cy (3)), trans-[Pd(sac)(2)(H2O)(L)] (L = PPh3 (2); PPh2Cy (5)), trans-[Pd(sac)(2)(L)(2)] (L = PPh2Cy (4); PPhCy2 (6); PCy3 (8)), [PdCl(sac)(PCy3)(DMSO)] (7), trans-[Pd (sac)(2)(PPh2Me)(DMSO)] (9) and cis-[M(sac)(2)(L)(2)] (L= PPhMe2 (10); PPh2Et (11); PPhEt2 (12)), were synthesized and structurally characterized. The Pd(II) complexes were applied for direct C2/C5 arylation of fivemembered heteroarenes such as furan, thiophene and thiazole derivatives with aryl bromides. Notably, arylation products up to 99% yields were obtained in the presence of the Pd(II) complexes. The catalytic mechanism of the direct arylation was proposed to proceed via a Pd(0)/Pd(II) pathway, due to elimination of the sac ligand in the Pd(II) complexes during catalysis.", "author": [ { "family": "Yilmaz", "given": " Veysel T." }, { "family": "Icsel", "given": " Ceyda" }, { "family": "Turgut", "given": " Omer R." }, { "family": "Aygun", "given": " Muhittin" }, { "family": "Evren", "given": " Enes" }, { "family": "Ozdemir", "given": " Ismail" } ], "container_title": "INORGANICA CHIMICA ACTA", "id": "6145", "issued": { "date-parts": [ [ 2020, 1, 1 ] ] }, "title": "Synthesis, structures and catalytic activity of Pd(II) saccharinate complexes with monophosphines in direct arylation of five-membered heteroarenes with aryl bromides", "type": "article-journal", "volume": "500" }
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