1440425-51-3Relevant academic research and scientific papers
PtII versus PdII-assisted [2u202f+u202f3] cycloadditions of nitriles and nitrone. Synthesis of nitrile-derived arylamido platinum(II) and Δ4-1,2,4-oxadiazoline palladium(II) complexes
Lasri, Jamal,Eltayeb, Naser Eltaher,Haukka, Matti,Babgi, Bandar A.
, p. 65 - 70 (2019)
The reactions of bis(organonitrile) platinum(II) complexes trans-[PtCl2(N[tbnd]CR)2] (R = C6H4(p-HC[dbnd]O), CH2C6H4(p-CH3)) with pyrroline N-oxide ?O+N[dbnd]CHCH2CH2CMe2 afford arylamido platinum(II) complexes trans-[PtCl2{(O[dbnd]CR)N[dbnd]CCH2CH2CMe2NH}2] (R = C6H4(p-HC[dbnd]O) (1), CH2C6H4(p-CH3) (2)). The spectral data of 1 and 2 show that the oxadiazoline rings in both cases have opened by a spontaneous N–O bond cleavage to form (Z)-p-formyl-N-(5,5-dimethylpyrrolidin-2-ylidene)benzamide or (Z)-N-(5,5-dimethylpyrrolidin-2-ylidene)-2-p-tolylacetamide ligands, respectively, where the N-atoms of the benzamide or acetamide moieties coordinate to platinum(II) metal centre in trans positions. However, the reactions of bis(organonitrile) palladium(II) complexes trans-[PdCl2(N[tbnd]CR)2] with pyrroline N-oxide furnish Δ4-1,2,4-oxadiazoline palladium(II) complexes trans-[PdCl2{N[dbnd]C(R)ONC(H)CH2CH2CMe2}2] (R = C6H4(p-HC[dbnd]O) (3), CH2C6H4(p-CH3) (4)) as the exclusive detected products. Compounds 1–4 have been characterized by IR, 1H, 13C NMR spectroscopy, elemental analyses, ESI+-MS and also, in the case of 1, by single crystal X-ray diffraction analysis.
Palladium(II)-assisted [2+3] cycloaddition of nitrones to organonitriles: Synthesis of 2,3-dihydropyrrolo[1,2-a]quinazolin-5-one and Δ4- 1,2,4-oxadiazoline derivatives
Lasri, Jamal
, p. 20 - 23 (2013/07/19)
The [2+3] cycloadditions of different organonitriles NCR (R1 = C6F5, R2 = Pr, R3 = p-CHOC 6H4, R4 = Ph) with the cyclic nitrone or acyclic nitrone -O+
