Part 1: Synthesis and visible absorption spectra of some new monoazo dyes derived from ethyl 2-amino-4-(4′-substitutedphenyl)thiophenes
作者:Banu Babür、Nermin Ertan
DOI:10.1016/j.saa.2014.04.042
日期:2014.10
Series of monoazo dyes from some ethyl 2-amino-4-(4′-substitutedphenyl) thiophenes were prepared and characterized. The structure of the substances was confirmed by FT-IR, 1H NMR and mass spectroscopic techniques. The relationship among the structure of the dyes, their absorption characteristics and the solvatochromic and halochromic behaviors of the dyes were investigated. Introduction of electron-accepting
制备并表征了一些2-氨基-4-(4'-取代苯基)噻吩的单偶氮染料系列。物质的结构通过FT-IR,1 H NMR和质谱技术确认。研究了染料的结构,它们的吸收特性以及染料的溶剂变色和卤致变色行为之间的关系。将电子接受性取代基引入重氮部分会导致所有使用的溶剂发生大的红移。染料表现出正的溶剂变色作用,并讨论了与互变异构有关的溶剂变色性质。
Pharmaceutically active compounds and methods of use
申请人:Moorman R. Allan
公开号:US20060183921A1
公开(公告)日:2006-08-17
New fused thiophene compounds are provided and methods of using those compounds for a variety of therapeutic indications. Compounds of the invention are particularly useful for treatment of neuropathic pain.
A simple and efficient one-pot synthesis of heteroaryl-substituted benzenes has been developed via cyclocondensation of vinylmalononitriles and ethylvinylcyanoacetates with heteroarylnitroolefines using diazabicyclo[2,2,2]octane as catalyst. The titled compounds were evaluated for their antitubercular, antibacterial and antifungal activities at various concentrations.