Resorcinarene-mono-benzimidazolium salts as NHC ligands for Suzuki--Miyaura cross-couplings catalysts

Authors

ÜMİT İŞCİ
MUHİTTİN AYGÜN
RESUL SEVİNCEK
YUNUS ZORLU
FABIENNE DUMOULIN

DOI

10.3906/kim-1506-50

Abstract

Two mono-benzimidazolium salts of resorcinarene have been prepared and used as ligands in Suzuki--Miyaura cross-coupling reactions. They have been fully characterized by $^{1}$H and $^{13}$C NMR, MALDI, and FT-IR spectroscopic methods, and their structures were confirmed by X-ray diffraction analysis. These two new resorcinarene-based mono-benzimidazolium salts showed good catalytic activity for coupling reactions in DMF. The highest conversion was achieved for arylation of 4-bromotoluene using the resorcinarenyl mono-dimethylbenzimidazolium salt.

Keywords

Suzuki--Miyaura reaction, resorcinarene, cavitand, N-heterocyclic carbene, benzimidazolium salt, catalyst

First Page

1300

Last Page

1309

Recommended Citation

İŞCİ, ÜMİT; AYGÜN, MUHİTTİN; SEVİNCEK, RESUL; ZORLU, YUNUS; and DUMOULIN, FABIENNE (2015) "Resorcinarene-mono-benzimidazolium salts as NHC ligands for Suzuki--Miyaura cross-couplings catalysts," Turkish Journal of Chemistry: Vol. 39: No. 6, Article 15. https://doi.org/10.3906/kim-1506-50
Available at: https://journals.tubitak.gov.tr/chem/vol39/iss6/15