Abstract
The trans-[PtCl4(EtCN)2] complex is involved in coupling reactions (CH2Cl2, 30–35 °C, 10–15 min) with 2-amino derivatives of heterocyclic compounds (2-NH2Het, where Het is pyridyl, 4-methylpyridyl, 5-methylpyridyl, 6-methylpyridyl, or thiazolyl) to form the trans-[PtCl4{ N(H)=C(Et)NHHet}2] complexes (1–5) with κ1(N)-coordinated hetarylamidine ligands. The reaction with the use of 2-aminopyrimidine (2-NH2Pym) produces the [PtCl4(2-NH2Pym)2] complex (6) as a result of complete replacement of the nitrile ligands in the [PtCl4(EtCN)2] complex. The compositions and structures of compounds 1–6 were confirmed by elemental analysis (C, H, N), IR spectroscopy, 1H, 13C{1H}, and 195Pt{1H} NMR spectroscopy, and FAB mass spectrometry. Complex 1 was additionally characterized by X-ray diffraction.
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Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 9, pp. 1572–1576, September, 2006.
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Garnovskii, D.A., Garnovskaya, E.D., Uraev, A.I. et al. Hetarylamidines derived from PtIV-mediated coupling of nitriles with aminoheterocycles. Russ Chem Bull 55, 1631–1635 (2006). https://doi.org/10.1007/s11172-006-0465-y
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DOI: https://doi.org/10.1007/s11172-006-0465-y