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
Yükleniyor...
Dosyalar
Tarih
2013
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Turkish Journal of Chemistry
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Öz (İngilizce): 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 /K2CO 3 in DMF/H 2 O. 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 1 H and 13 C NMR and IR spectroscopic methods, and micro analysis. The molecular structure of 5 was also determined by X-ray crystallography.
Açıklama
Anahtar Kelimeler
Mühendislik, Kimya
Kaynak
Turkish Journal of Chemistry
WoS Q Değeri
Scopus Q Değeri
Cilt
37
Sayı
5
Künye
ÜLKÜ Y., HASAN K., Sevim CELIKESIR T., MEHMET A., Orhan B. (2013). 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, Turkish Journal of Chemistry, İnönü Üniversitesi, Malatya.
