Microwave Assisted Suzuki-Miyaura and Ullmann Type Homocoupling Reactions of 2-and 3-Halopyridines Using a Pd(OAc)(2)/Benzimidazolium Salt and Base Catalyst System


Yilmaz U. , Deniz S., KÜÇÜKBAY H. , ŞİRECİ N.

MOLECULES, cilt.18, ss.3712-3724, 2013 (SCI İndekslerine Giren Dergi) identifier identifier identifier

  • Cilt numarası: 18 Konu: 4
  • Basım Tarihi: 2013
  • Doi Numarası: 10.3390/molecules18043712
  • Dergi Adı: MOLECULES
  • Sayfa Sayıları: ss.3712-3724

Özet

A number of novel benzimidazole derivatives 1-4 were synthesized and the catalytic activity of these compounds in a catalytic system consisting of a benzimidazolium salt/Pd(OAc)(2)/K2CO3 were investigated in the Suzuki-Miyaura and Ullmann type homocoupling reactions under microwave irradiation. We obtained both cross coupling and homocoupling products of pyridine and some side products such as dimethylaminopyridine and unsubstituted pyridine.