6533b859fe1ef96bd12b7adb

RESEARCH PRODUCT

Thiophene based imino-pyridyl palladium(II) complexes : Synthesis, molecular structures and Heck coupling reactions

Fatma M. ElantabliMduduzi P. RadebeWilliam M. MotswainyanaBernard O. OwagaSamir M. El-medaniErik EkengardMatti HaukkaEbbe NordlanderMartin O. Onani

subject

synteesipalladiumheck reactionsimino-pyridylmolecular structures

description

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. peerReviewed

yearjournalcountryeditionlanguage
2017-01-01
http://urn.fi/URN:NBN:fi:jyu-201706012624