Catalytic activities in direct arylation of novel palladium N-heterocyclic carbene complexes
Küçük Resim Yok
Tarih
2014
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Wiley
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Eight novel palladium N-heterocyclic carbene (Pd-NHC) complexes were synthesized by the reaction of chloro 1,3-dialkylbenzimidazolin-2-ylidene silver(I) complexes with bis(benzonitrile)palladium(II) chloride in dichloromethane. These eight Pd-NHC complexes are as follows: bis[1-phenyl-3-(2,4,6-trimethylbenzyl)benzimidazol-2-ylidene]dichloropalladium(II), bis[1-phenyl-3-(2,3,5,6-tetramethylbenzyl)benzimidazol-2-ylidene]dichloropalladium(II), bis[1-phenyl-3-(2,3,4,5,6-pentamethylbenzyl)benzimidazol-2-ylidene]dichloropalladium(II), bis[1-phenyl-3-(3,4,5-trimethoxybenzyl)benzimidazol-2-ylidene]dichloropalladium(II), bis[1-(2-diethylaminoethyl)-3-(3-methylbenzyl)benzimidazol-2-ylidene]dichloropalladium(II), bis[1-(2-diethylaminoethyl)-3-(2,3,5,6-tetramethylbenzyl)benzimidazol-2-ylidene]dichloropalladium(II),bis[1-(2-morpholinoethyl)-3-naphthalenomethylbenzimidazol-2-ylidene]dichloropalladium(II) and bis[1-(2-morpholinoethyl)-3-(2-methylbenzyl)benzimidazol-2-ylidene]dichloropalladium(II). Also, these synthesized complexes were fully characterized using Fourier transform infrared, H-1 NMR and C-13 NMR spectroscopic methods and elemental analysis techniques. These synthesized novel Pd-NHC complexes were tested as catalysts in the direct arylation of 2-n-butylthiophene, 2-n-butylfuran and 2-isopropylthiazole with various aryl bromides at 130 degrees C for 1 h. The complexes showed very good catalytic activities in these reactions. Copyright (c) 2014 John Wiley & Sons, Ltd.
Açıklama
Anahtar Kelimeler
N-heterocyclic carbene, palladium complex, direct arylation, aryl bromide
Kaynak
Applied Organometallic Chemistry
WoS Q Değeri
Q1
Scopus Q Değeri
Q2
Cilt
28
Sayı
12
