analysis, and single crystal X-ray analysis. In the molecular structure, the ligand possessed anti-conformation around –S–S– bond and monomeric moieties were linked into the chains through the C–H⋯O and π⋯π interactions. The reaction of the synthesized ligand with NiCl2 in methanol afforded the corresponding Ni(II) complex. The resulting product was further investigated by thermal gravimetric and differential
摘要本文报道了基于双(2-氨基-4-苯基1-5-噻唑基)二硫化物及其相应的Ni(II)配合物的新型席夫碱配体的合成。通过在无水甲醇中作为溶剂在2-羟基-1-萘醛和双(2-氨基-4-苯基-5-噻唑)二硫之间形成亚胺键来制备该配体。通过FT-IR,1 H NMR,13 C NMR,元素分析和单晶X射线分析进行表征。在分子结构中,配体在–S–S–键周围具有反构象,并且单体部分通过C–H⋯O和π ⋯ π相互作用连接到链中。合成配体与NiCl 2的反应在甲醇中的溶液得到相应的Ni(II)配合物。通过热重量分析和差热分析进一步研究所得产物,证实了所需聚合物配合物的形成。分别通过循环伏安法和UV-Vis滴定法研究了二甲基亚砜(DMSO)溶液中Ni(II)络合物的电化学行为和形成。 图形概要
A one-pot synthesis of 2-aminothiazoles via the coupling of ketones and thiourea using I<sub>2</sub>/dimethyl sulfoxide as a catalytic oxidative system
A series of 2-aminothiazoles is prepared in moderate-to-good yields by the direct coupling of ketones and thiourea using I2/dimethyl sulfoxide as a catalytic oxidative system. This method avoids th...
Novel arginine-functionalized starch-based nanoparticles (Arg-SNPs) were synthesized and characterized by Fourier transforms infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDAX), X-ray diffraction (XRD) and thermos-gravimetric analyses (TGA) techniques. Arg-SNP was used as a highly efficient and macromolecule-supported recyclable nanocatalyst for the one-pot reaction between thiourea and iodine with various substituted methylcarbonyls to afford the corresponding diheteroaryl thioethers in high-to-quantitative yields. The nanocatalyst was recycled at least five times without significant decrease in the catalytic activity. (C) 2019 Elsevier B.V. All rights reserved.
Dhindsa, G. S., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1988, vol. 27, # 1-12, p. 191 - 192
作者:Dhindsa, G. S.
DOI:——
日期:——
DHINDSA, G. S., INDIAN J. CHEM. B, 27,(1988) N 2, C. 191-192