dc.contributor.author |
Gok, Y |
|
dc.contributor.author |
Akkoc, S |
|
dc.contributor.author |
Akkurt, M |
|
dc.contributor.author |
Tahir, MN |
|
dc.date.accessioned |
2022-10-13T12:31:32Z |
|
dc.date.available |
2022-10-13T12:31:32Z |
|
dc.date.issued |
2014 |
|
dc.identifier.uri |
http://hdl.handle.net/11616/79992 |
|
dc.description.abstract |
The nine new heteroaryl-substituted imidazolidinium (1a-c), pyrimidinium (2a-c) and diazepinium (3a-c) salts as N-heterocyclic carbene (NHC) precursors were synthesized in good yields and entirely characterized using elemental analyses and conventional spectroscopic methods. In situ formed complexes from heterocyclic salts (1-3), Pd(OAc)(2) and in the presence of KOBu (t) as a base were tested as catalysts for the Mizoroki-Heck coupling reaction in an aqueous media and very high yields were achieved. 1,3-Di(5-methylthiophen-2-ylmethyl)pyrimidinium hexafluorophosphate salt (2b) was structurally characterized by single-crystal X-ray diffraction. In the 2b compound (C16H21N2S2)(+)[PF6](-), the terminal thiophene rings are twisted with a dihedral angle of 72.8(3)A degrees. In the pyrimidine ring, the three successive C atoms between the N atoms are disordered over two positions [occupancy ratio 0.753(12):0.247(12)]. In the crystal, neighboring molecules are linked by C-HaEuro broken vertical bar F hydrogen bonds, running along the b axis. |
|
dc.description.abstract |
C1 [Gok, Yetkin] Erciyes Univ, Fac Sci, Dept Chem, Kayseri, Turkey. |
|
dc.description.abstract |
[Akkoc, Senem] Inonu Univ, Fac Sci & Arts, Dept Chem, Malatya, Turkey. |
|
dc.description.abstract |
[Akkurt, Mehmet] Erciyes Univ, Fac Sci, Dept Phys, Kayseri, Turkey. |
|
dc.description.abstract |
[Tahir, Muhammad Nawaz] Sargodha Univ, Dept Phys, Sargodha, Pakistan. |
|
dc.source |
JOURNAL OF THE IRANIAN CHEMICAL SOCIETY |
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dc.title |
Imidazole, pyrimidine and diazepine containing heteroaryl-substituted |
|
dc.title |
heterocyclic salts as efficient ligand precursors for Mizoroki-Heck |
|
dc.title |
coupling reaction: synthesis, structural characterization and catalytic |
|
dc.title |
activities |
|