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Note | Regular issue | Vol 65, No. 6, 2005, pp.1439-1445
Published online, 24th March, 2005
DOI: 10.3987/COM-05-10363
1,4,5,6-Tetrahydropyrimidinium Halides Ligands for Suzuki-Miyaura Cross-Coupling of Unactivated Aryl Chlorides

Bülent Alici, Ismail Özdemir,* Nevin Gürbüz, Engin Çetinkaya, and Bekir Çetinkaya

*Department of Chemistry, Faculty of Science and Arts, Inönü University, 44280 Malatya, Turkey

Abstract

Four functionalized bis(1,4,5,6-tetrahyropyrimidinium) salts (2a-d) have been prepared and characterized by conventional spectroscopic methods and elemental analyses. A highly effective, easy to handle and environmentally benign process for palladium mediated Suzuki cross-coupling was developed. The in situ prepared three component system Pd(OAc)2 / bis(1,4,5,6-tetrahyropyrimidinium) bromides (2a-d) and Cs2CO3 catalyses quantitatively the Suzuki cross-coupling of deactivated aryl chloride.