Synthesis of sterically hindered N-benzyladamantyl substituted benzimidazol-2-ylidene palladium complexes and investigation of their catalytic activity in aqueous medium


Dehimat Z. I. , PAŞAHAN A. , Tebbani D., YAŞAR S. , ÖZDEMİR İ.

TETRAHEDRON, cilt.73, ss.5940-5945, 2017 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 73 Konu: 40
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1016/j.tet.2017.08.037
  • Dergi Adı: TETRAHEDRON
  • Sayfa Sayıları: ss.5940-5945

Özet

NHC-Pd-PEPPSI complexes with bulky benzyladamantyl substituted N-heterocyclic carbenes (NHC) were synthesized and characterized by NMR, HRMS, and micro analysis. These complexes were then used for Suzuki-Miyaura coupling reactions between aryl bromides and phenylboronic acid. With low catalyst, loading, all synthesized complexes rapidly catalyzed the Suzuki-Miyaura cross-coupling reaction in iPrOH/water (1:3 v/v) at room temperature in air. All palladium compounds were stable and had high catalytic activity for the Suzuki-Miyaura coupling reaction. (C) 2017 Elsevier Ltd. All rights reserved.