Silver-Catalyzed [3+2] Cycloaddition of Azomethine Ylides with Isocyanides for Imidazole Synthesis
作者:Zhongyan Hu、Jinhuan Dong、Xianxiu Xu
DOI:10.1002/adsc.201700447
日期:2017.10.25
silver-catalyzed aerobic oxidative [3+2] cycloaddition of azomethineylides with aryl or heteroaryl isocyanides has been developed. The reaction represents a novel protocol for the efficient and practical synthesis of 1,2-diarylimidazoles bearing a broad range of substituents in good to excellent yields under mild conditions. The practicability of this cycloaddition was shown by a gram-scale synthesis
Tetragonalpolymers of the type [Rh(L)2]Cl}n with stacked layer (RhI⋯ RhI 3.31—3.41 Å) structures have been prepared by the reaction of [Rh(CO)2Cl}2] with the polymerizing ligands (L) 1,4-di-isocyanobenzene, 1,4-di-isocyanonaphthalene, 4,4′-di-isocyanobiphenyl,2,4-di-isocyanotoluene, bis(4-isocyanophenyl)methane, or 1,5-di-isocyanonaphthalene. The new materials have been characterized by elemental
通过[Rh(CO)2 Cl} 2 ]与[Rh(L)2 ] Cl} n类型的四方聚合物具有堆叠层(Rh I ⋯Rh I 3.31-3.41Å)结构的叠层结构聚合配体(L)1,4-二异氰基苯,1,4-二异氰基萘,4,4'-二异氰基联苯,2,4-二异氰基甲苯,双(4-异氰基苯基)甲烷或1, 5-二异氰基萘。新材料的特征在于元素分析,热重分析,红外光谱和漫反射光谱以及其X射线粉末衍射图。
Hogarth, Graeme; Humphrey, David G.; Kaltsoyannis, Nikolas, Journal of the Chemical Society, Dalton Transactions
作者:Hogarth, Graeme、Humphrey, David G.、Kaltsoyannis, Nikolas、Kim, Woo-Sung、Lee, Mo-yin (Venus)、et al.
DOI:——
日期:——
Synthesis and antiproliferative activity of aromatic and aliphatic bis[aminomethylidene(bisphosphonic)] acids
作者:Waldemar Goldeman、Anna Nasulewicz-Goldeman
DOI:10.1016/j.bmcl.2014.05.071
日期:2014.8
A series of aromatic and aliphatic bis[aminomethylidene(bisphosphonic)] acids was synthesized in the reaction of triethylphosphite with isonitriles followed by hydrolysis or dealkylation. The in vitro anti-proliferative effect of all synthesized tetraphosphonic acids against MCF-7 breast cancer cells, J774E macrophages and HL-60 promyelocytic leukemia cells was determined. Three aromatic derivatives (5a, 5f and 5j) showed a similar or higher anti-proliferative activity than zoledronic acid. (C) 2014 Elsevier Ltd. All rights reserved.