1005758-97-3Relevant academic research and scientific papers
N-Methylphthalimide-substituted Benzimidazolium salts and PEPPSI Pd-NHC complexes: Synthesis, characterization and catalytic activity in carbon-carbon bond-forming reactions
Akko?, Senem,G?k, Yetkin,Ilhan, Ilhan ?zer,Kayser, Veysel
, p. 81 - 88 (2016)
A series of novel benzimidazolium salts (1-4) and their pyridine enhanced precatalyst preparation stabilization and initiation (PEPPSI) themed palladium N-heterocyclic carbene complexes [PdCl2(NHC)(Py)] (5-8), where NHC = l-(N-methylphthalimide)-3-alkylbenzimidazolin-2-ylidene and Py = 3-chloropyridine, were synthesized and characterized by means of 1H and 13C{1H} NMR, UV-vis (for 5-8), ESI-FTICR-MS (for 2, 4, 6-8) and FTIR spectroscopic methods and elemental analysis. The synthesized compounds were tested in Suzuki-Miyaura cross-coupling (for 1-8) and arylation (for 5-8) reactions. As catalysts, they demonstrated a highly efficient route for the formation of asymmetric biaryl compounds even though they were used in very low loading. For example, all compounds displayed good catalytic activity for the C-C bond formation of 4-tert-butylphenyl-boronic acid with 4-chlorotoluene.
Synthesis of novel palladium(II) N-heterocyclic carbene complexes and their catalytic activities in the direct C5 arylation reactions
Yi?it, Murat,Yi?it, Beyhan,G?k, Yetkin
, p. 23 - 28 (2016)
New palladium(II) N-heterocyclic carbene complexes have been easily obtained in good yields from the carbene transfer reaction of silver-NHC complexes with PdCl2(PhCN)2and characterized by elemental analysis,1H NMR andsup
2-methyl-1,4-benzodioxan-substituted bis(NHC)PdX2 complexes: Synthesis, characterization and the catalytic activity in the direct arylation reaction of some 2-alkyl-heterocyclic compounds
G?k, Yetkin,Akta?, Ayd?n,Sar?, Yakup,Erdo?an, Hülya
, p. 423 - 433 (2019)
Almost in all fields of chemistry, the C–C cross-coupling reactions such as the direct arylation reaction have attracted much attention and have advanced quickly in recent years due to the importance of environment-friendly properties. This study contains
New 4-vinylbenzyl-substituted bis(NHC)-Pd(II) complexes: Synthesis, characterization and the catalytic activity in the direct arylation reaction
G?k, Yetkin,Akta?, Ayd?n,Erdo?an, Hülya,Sar?, Yakup
, p. 735 - 740 (2018)
This study contains the synthesis of the new 4-vinylbenzyl substituted bis(NHC)-Pd(II) complexes and their catalytic activity in direct arylation reaction. The bis(NHC)-Pd(II) complexes have been prepared from Ag(I)NHC complexes by transmetallation method
Catalyst Efficacy of Homogeneous and Heterogeneous Palladium Catalysts in the Direct Arylation of Common Heterocycles
Reay, Alan J.,Neumann, Lydia K.,Fairlamb, Ian J.S.
, p. 1211 - 1216 (2016)
The direct arylation of several common heterocycles, using homogeneous and heterogeneous palladium (pre)catalysts, has been examined by initial rate analysis. The study reveals that apparently distinct palladium catalysts can display similar activities in such transformations, implying formation of a comparable active palladium catalyst phase. A substrate dependence was noted for the palladium catalysts examined.
Catalytic activities in the direct C5 arylation of novel palladium N-heterocyclic carbene complexes containing benzimidazol-2-ylidene nucleus
Akko?, Senem,G?k, Yetkin,Akkurt, Mehmet,Tahir, Muhammad Nawaz
, p. 221 - 230 (2014)
New palladium N-heterocyclic carbene (NHC) complexes (1a-e) were synthesized in very good yields by the reaction of 1-phenyl-3- alkylbenzimidazolium salts with Pd(OAc)2 in dimethyl sulfoxide. These synthesized complexes were fully characterized
Direct arylation of heteroaromatic compounds by Pd(OAc)2/tetrakis(Nbenzimidazoliummethyl)benzene salt system
?zdemir, ?smail,Ulu, ?znur Do?an
, p. 286 - 295 (2021/08/19)
Six novel tetrakis(N-benzimidazoliummethyl)benzene salts were synthesized using 1,2,4,5-tetrakis-(bromomethyl)benzene with 1-alkylbenzimidazole. The structures of all isolated compounds were elucidated based on spectroscopic methods (1H and 13C NMR, and FT-IR spectroscopy) and were investigated for their catalytic activities in the direct arylation of 2-n-propylthiazole, 2-n-buthyltiophene, 2-n-butylfuran, and 4,5-dimethylthiazole. All synthesized salts showed high catalytic activity for direct arylation of heteroaromatic compounds.
Direct arylation of heteroarenes by PEPPSI-type palladium–NHC complexes and representative quantum chemical calculations for the compound which the structure was determined by X-ray crystallography
?ahin, Neslihan,Serdaro?lu, Goncagül,Dü?ünceli, Serpil Demir,Tahir, Muhammad Navaz,Ar?c?, Cengiz,?zdemir, ?smail
, p. 3258 - 3284 (2019/11/26)
In this study, we synthesized five new PEPPSI-type Pd-NHC complexes with high yields around 78–83%. The structures of all complexes were characterized by FT-IR, 1H NMR, and 13C{1H} NMR spectroscopies. Further, the structur
N-Propylphthalimide-substituted bis-(NHC)PdX2 complexes: synthesis, characterization and catalytic activity in direct arylation reactions
Erdo?an, Hülya,Akta?, Ayd?n,G?k, Yetkin,Sar?, Yakup
, p. 31 - 37 (2017/11/15)
Palladium-catalyzed direct arylation of heteroaromatics has become a popular method for producing carbon–carbon bonds via C–H bond activation. A wide diversity of heteroaromatics such as furan, thiophenes and thiazoles can be used for this reaction. This
Synthesis of silver(I) and palladium(II) N-heterocyclic carbene complexes and their use as catalysts for the direct C5 arylation of heteroaromatic compounds
Yi?it, Beyhan,Yi?it, Murat,Da?deviren, Zeynep,?zdemir, ?smail
, p. 751 - 757 (2016/09/13)
Silver(I) N-heterocyclic carbene complexes were synthesized in good yields by the reactions of 1,3-dialkylperhydrobenzimidazolium salts with silver(I) oxide in dichloromethane. The silver complexes were used as carbene-transfer agents to synthesize pallad
