Dinuclear silver-bis(N-heterocyclic carbene) complexes: Synthesis, catalytic activity in propargylamine formation and computational studies
| dc.contributor.author | Demir Atli D. | |
| dc.contributor.author | Şen B. | |
| dc.date.accessioned | 2024-07-22T08:06:35Z | |
| dc.date.available | 2024-07-22T08:06:35Z | |
| dc.date.issued | 2021 | |
| dc.description.abstract | Preparation of a series of 1,1′-dialkyl-3,3′-(2-methylenepropane-1,3-diyl)dibenzimidazolium salts (alkyl = ethyl, propyl, butyl) (2a-2c) and their dinuclear bis(N-heterocyclic carbene) silver complexes (3a-3c) is reported. The silver complexes were synthesized via in situ deprotonation with Ag2O in 67-74% yields. The structural definitions of the synthesized compounds were performed by 1H NMR, 13C NMR, elemental analysis, FT-IR and also LC-MSMS techniques (only for 3a-3c). The silver complexes were utilized for three-component coupling reactions of aldehydes, amines and alkynes (A3-coupling). It was found that increasing the chain length of the alkyl substituent on the N-heterocyclic carbene ligand led to increase in catalytic performance. 3c showed the highest activity with 81% yield and with TON of 27 for N,N-diethyl-3-phenylprop-2-yn-1-amine formation. Geometry optimization was performed and geometric parameters were calculated for the compounds. The theoretical harmonic vibration frequencies of molecules were computed by DFT/B3LYP methods for their optimized geometries. © 2021 Informa UK Limited, trading as Taylor & Francis Group. | |
| dc.identifier.DOI-ID | 10.1080/00958972.2021.1972097 | |
| dc.identifier.issn | 00958972 | |
| dc.identifier.uri | http://akademikarsiv.cbu.edu.tr:4000/handle/123456789/13595 | |
| dc.language.iso | English | |
| dc.publisher | Taylor and Francis Ltd. | |
| dc.title | Dinuclear silver-bis(N-heterocyclic carbene) complexes: Synthesis, catalytic activity in propargylamine formation and computational studies | |
| dc.type | Article |