Synthesis of novel benzimidazole salts and microwave-assisted catalytic activity of in situ generated Pd nanoparticles from a catalyst system consisting of benzimidazol salt, Pd(OAc) 2 , and base in a Suzuki-Miyaura reaction

Ülkü YILMAZ; Hasan KÜÇÜKBAY; Sevim TÜRKTEKİN ÇELİKESİR

doi:https://doi.org/10.3906/kim-1207-18

Makale detayları

Synthesis of novel benzimidazole salts and microwave-assisted catalytic activity of in situ generated Pd nanoparticles from a catalyst system consisting of benzimidazol salt, Pd(OAc) 2 , and base in a Suzuki-Miyaura reaction

Yazarlar:

Ülkü YILMAZ | Hasan KÜÇÜKBAY | Sevim TÜRKTEKİN ÇELİKESİR

Yayıncı:

TUBITAK

Ana Başlıklar:

Uygulamalı fizik

Dergi:

Turkish Journal of Chemistry 2013 Vol.37 Issue 5, pp.721-733

Belge Tipi:

Makale

Yayın Tarihi:

4/2013

Belge Dili:

İngilizce

Document ID (Org No.):

2000727322

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527

DOI:

https://doi.org/10.3906/kim-1207-18

Özet:

 

Novel benzimidazolium salts having N-benzyl or   N-(4-substitutedbenzyl) groups were synthesized and their microwave-promoted   catalytic activity for the Suzuki--Miyaura cross-coupling reaction were   determined using in situ formed palladium(0) nanoparticles (PdNPs) from a   catalytic system consisting of Pd(OAc)2/K2CO3 in   DMF/H2O. PdNPs were characterized by X-ray diffraction (XRD)   pattern and particle size of in situ generated PdNPs from the Pd(111) plane   was determined to be of diameter 19.6 nm by the Debye--Scherrer equation.   Moreover, the yield of the Suzuki--Miyaura reactions with aryl iodides and   aryl bromides was found to be nearly quantitative. The synthesized   benzimidazole salts (1--5) were identified by   1H and 13C NMR and IR spectroscopic methods, and   micro analysis. The molecular structure of 5 was also determined by   X-ray crystallography.

 

Novel benzimidazolium salts having N-benzyl or   N-(4-substitutedbenzyl) groups were synthesized and their microwave-promoted   catalytic activity for the Suzuki--Miyaura cross-coupling reaction were   determined using in situ formed palladium(0) nanoparticles (PdNPs) from a   catalytic system consisting of Pd(OAc)2/K2CO3 in   DMF/H2O. PdNPs were characterized by X-ray diffraction (XRD)   pattern and particle size of in situ generated PdNPs from the Pd(111) plane   was determined to be of diameter 19.6 nm by the Debye--Scherrer equation.   Moreover, the yield of the Suzuki--Miyaura reactions with aryl iodides and   aryl bromides was found to be nearly quantitative. The synthesized   benzimidazole salts (1--5) were identified by   1H and 13C NMR and IR spectroscopic methods, and   micro analysis. The molecular structure of 5 was also determined by   X-ray crystallography.

Makale detayları

Synthesis of novel benzimidazole salts and microwave-assisted catalytic activity of in situ generated Pd nanoparticles from a catalyst system consisting of benzimidazol salt, Pd(OAc) 2 , and base in a Suzuki-Miyaura reaction

Yazarlar: Ülkü YILMAZ | Hasan KÜÇÜKBAY | Sevim TÜRKTEKİN ÇELİKESİR

Yayıncı: TUBITAK

Ana Başlıklar: Uygulamalı fizik

Dergi: Turkish Journal of Chemistry 2013 Vol.37 Issue 5, pp.721-733

Belge Tipi: Makale

Yayın Tarihi: 4/2013

Belge Dili: İngilizce

Document ID (Org No.): 2000727322

Sıklık: İki Aylık

eISSN: 1303-6130

pISSN: 1300-0527

DOI: https://doi.org/10.3906/kim-1207-18

Sayı

Yazarlar:

Ülkü YILMAZ | Hasan KÜÇÜKBAY | Sevim TÜRKTEKİN ÇELİKESİR

Yayıncı:

TUBITAK

Ana Başlıklar:

Uygulamalı fizik

Dergi:

Turkish Journal of Chemistry 2013 Vol.37 Issue 5, pp.721-733

Belge Tipi:

Makale

Yayın Tarihi:

4/2013

Belge Dili:

İngilizce

Document ID (Org No.):

2000727322

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527

DOI:

https://doi.org/10.3906/kim-1207-18