Rhodium(I) complexes with pyridazine, 4,6-dimethyl-pyrimidine, 4,6-bis(3,5-dimethylpyrazol-1-yl)pyrimidine, 3,6-bis(3,5-dimethylpyrazol-1-yl)pyridazine and 3-(3,5-dimethylpyrazol-1-yl)-6-chloropyridazine

The synthesis and properties of rhodium(I) complexes of formulae [“RhCl(diolefin)”₂(L)] (or [Rh(Cl(diolefin)(L)]), and [Rh(diolefin)(L)]_n(ClO₄)_n are reported. These complexes react with carbon monoxide to yield the related carbonyl derivatives. Ligands used were pyridazine, 4,6-dimethyl-pyrimidine, 4,6-bis(3,5-dimethylpyrazol-1-yl)pyrimidine, 3,6-bis(3,5-dimethylpyrazol-1-yl)pyridazine and 3-(3,5-dimethyl-pyrazol-1-yl)-6-chloropyridazine. Related iridium(I) and gold(I) compounds are also reported.     

3,5-Di(hydroxyorganyl)pyrazoles

The reaction of primary-tertiary and secondary-tertiary aliphatic diacetylenic -glycols with hydrazine hydrate leads to the formation of isomeric 3,5-di(hydroxyalkyl)pyrazoles in which the pyrazole ring is present both in the and in the position to the tertiary carbon atom to which the hydroxy group is attached. The structure of the hydrocarbon substituents connected with this atom substantially affects the ratio of the and isomers. The addition of hydrazine hydrate to aliphatic glycols and their monoethers is accompanied by the formation of individual -(hydroxyalkyl)pyrazoles.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 11, pp. 1538–1541, November, 1973.     

Preparation,Characterization and Application of Modified Surfaces with 3,5-Bis(3,5-dinitrobenzoyl-amino) benzoic acid

Summary: The spontaneous adsorption of the dendron 3,5-Bis (3,5-dinitrobenzoylamino) benzoic acid (D-NO₂) onto gold and carbon electrodes produced conductive surfaces with electroactive chemical functions. A comparative electrochemical behavior of both electrodes after dendron immobilization led us to conclude that the self-assembly of D-NO₂ on carbon is faster and stronger. Considering this advantage, the surface of magnetic maghemite nanoparticles (MNPs) was modified using D-NO₂. Firstly, MNPs were modified with APS as silane coupling agent and afterwards, D-NO₂ was covalently attached to the surface, achieving nitro-functionalized MNPs. Subsequently, the immobilization of these modified MNPs onto glassy carbon surfaces was explored to generate a novel platform promising for biosensors development.     

Molecular structure of (3,5-diallylisocyanuratomethyl)bis(chloromethyl)phosphine oxide. Synthesis of (3,5-diallylisocyanuratomethyl)phosphine sulfides

X-Ray study of the (3,5-diallylisocyanuratomethyl)bis(chloromethyl)phosphine oxide showed that the phosphorylmethyl group is bonded to the nitrogen atom of the cycle. Reaction of the tris(chloromethyl)phosphine sulfide with sodium diallylisocyanurate gave (3,5-diallylisocyanuratomethyl)bis(chloromethyl)phosphine sulfide, and treatment of the tris(3,5-diallylisocyanuratomethyl)phosphine oxide with phosphorus pentasulfide gave a tris(3,5-diallylisocyanuratomethyl)bis(chloromethyl)phosphine sulfide.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 8, pp. 1446–1448, August, 1993.     

含1,2-双(3,5-二氧哌嗪-1)乙烷和(±)-1,2-双(3,5-二氧哌嗪-1)丙烷低聚物的合成

<正> 将低分子药物或有药理活性的基团,通过高分子化,所得的高分子药物,具有较高的为细胞吞噬或胞饮等活性,并期望它们在体内崩解缓释,与相应的低分子药物相比,可以发挥长效、低毒的优点。 1,2双-(3,5-二氧哌嗪-1)乙烷和(±)1,2双(3,5-二氧哌嗪-1)丙烷,是临床使用