Thiophene based imino-pyridyl palladium(II) complexes : Synthesis, molecular structures and Heck coupling reactions
(2017) In Journal of Organometallic Chemistry 843. p.40-47- Abstract
The new compounds (5-methyl-2-thiophene-2-pyridyl(R))imine [R = methyl (L1); R = ethyl (L2)] and (5-bromo-2-thiophene-2-pyridyl(R)imine [R = methyl (L3); R = ethyl (L4)] were successfully synthesized via Schiff base condensation reaction and obtained in good yields. These potential ligands were reacted with [PdCl2(COD)] and [PdClMe(COD)] to give the corresponding complexes [PdCl2(L)] (L = L1-L4; 1–4) and [PdClMe(L)] (L = L1-L4; 5–8). All compounds were characterized by IR, 1H and 13C NMR spectroscopy, elemental analysis and mass spectrometry. The molecular structures of 1, 2, 6 and 8 were confirmed by X-ray crystallography. The complexes were evaluated as catalyst precursors for standard Heck... (More)
The new compounds (5-methyl-2-thiophene-2-pyridyl(R))imine [R = methyl (L1); R = ethyl (L2)] and (5-bromo-2-thiophene-2-pyridyl(R)imine [R = methyl (L3); R = ethyl (L4)] were successfully synthesized via Schiff base condensation reaction and obtained in good yields. These potential ligands were reacted with [PdCl2(COD)] and [PdClMe(COD)] to give the corresponding complexes [PdCl2(L)] (L = L1-L4; 1–4) and [PdClMe(L)] (L = L1-L4; 5–8). All compounds were characterized by IR, 1H and 13C NMR spectroscopy, elemental analysis and mass spectrometry. The molecular structures of 1, 2, 6 and 8 were confirmed by X-ray crystallography. The complexes were evaluated as catalyst precursors for standard Heck coupling reactions and showed significant catalytic activities that could be correlated with steric and electronic influences.
(Less)
- author
- Elantabli, Fatma M. LU ; Radebe, Mduduzi P. ; Motswainyana, William M. ; Owaga, Bernard O. ; El-Medani, Samir M. ; Ekengard, Erik LU ; Haukka, Matti ; Nordlander, Ebbe LU and Onani, Martin O.
- organization
- publishing date
- 2017-08-15
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Heck reactions, Imino-pyridyl, Molecular structures, Palladium, Synthesis
- in
- Journal of Organometallic Chemistry
- volume
- 843
- pages
- 8 pages
- publisher
- Elsevier
- external identifiers
-
- wos:000403732900007
- scopus:85019967243
- ISSN
- 0022-328X
- DOI
- 10.1016/j.jorganchem.2017.04.022
- language
- English
- LU publication?
- yes
- id
- 4f06515e-a20c-4a55-a530-b8d8b8449603
- date added to LUP
- 2017-06-14 11:30:59
- date last changed
- 2024-03-17 13:54:56
@article{4f06515e-a20c-4a55-a530-b8d8b8449603, abstract = {{<p>The new compounds (5-methyl-2-thiophene-2-pyridyl(R))imine [R = methyl (L1); R = ethyl (L2)] and (5-bromo-2-thiophene-2-pyridyl(R)imine [R = methyl (L3); R = ethyl (L4)] were successfully synthesized via Schiff base condensation reaction and obtained in good yields. These potential ligands were reacted with [PdCl<sub>2</sub>(COD)] and [PdClMe(COD)] to give the corresponding complexes [PdCl<sub>2</sub>(L)] (L = L1-L4; 1–4) and [PdClMe(L)] (L = L1-L4; 5–8). All compounds were characterized by IR, <sup>1</sup>H and <sup>13</sup>C NMR spectroscopy, elemental analysis and mass spectrometry. The molecular structures of 1, 2, 6 and 8 were confirmed by X-ray crystallography. The complexes were evaluated as catalyst precursors for standard Heck coupling reactions and showed significant catalytic activities that could be correlated with steric and electronic influences.</p>}}, author = {{Elantabli, Fatma M. and Radebe, Mduduzi P. and Motswainyana, William M. and Owaga, Bernard O. and El-Medani, Samir M. and Ekengard, Erik and Haukka, Matti and Nordlander, Ebbe and Onani, Martin O.}}, issn = {{0022-328X}}, keywords = {{Heck reactions; Imino-pyridyl; Molecular structures; Palladium; Synthesis}}, language = {{eng}}, month = {{08}}, pages = {{40--47}}, publisher = {{Elsevier}}, series = {{Journal of Organometallic Chemistry}}, title = {{Thiophene based imino-pyridyl palladium(II) complexes : Synthesis, molecular structures and Heck coupling reactions}}, url = {{http://dx.doi.org/10.1016/j.jorganchem.2017.04.022}}, doi = {{10.1016/j.jorganchem.2017.04.022}}, volume = {{843}}, year = {{2017}}, }