Efficient Synthesis of 4-Hydroxybenzo[<i>h</i>]Quinoline-2(1<i>H</i>)-One and Some Derivatives
作者:E.O. Moradi Rufchahi、M. Pourbabaea
DOI:10.3184/174751916x14599583786239
日期:2016.5
1-naphthylamine with diethyl malonate under reflux. These two compounds were then separately cyclised to 4-hydroxybenzo[h]quinolin-2-(1H)-one in two different reactions in polyphosphoric acid. A series of esters and ethers of the 4-hydroxy group and some 3-substituted derivatives were prepared. The structures of the compounds were confirmed by infra-red NMR spectroscopy and elemental analysis.
Synthesis, characterization and spectroscopic properties of some new azo disperse dyes derived from 4-hydroxybenzo[h]quinolin-2-(1H)-one as a new synthesized enol type coupling component
作者:E.O. Moradi Rufchahi、A. Ghanadzadeh Gilani
DOI:10.1016/j.dyepig.2012.06.008
日期:2012.12
3-(naphthalen-1-ylamino)-3-oxopropanoic acid (I) or N,N′-di(naphthalen-1-yl)malonamide (II) and subsequently coupled with diazotized p-substituted aniline derivatives. The structures of the synthesized dyes were determined by spectroscopic and analytical methods. Solvent effects on the ultraviolet–visible absorption spectra of these novel azo dyes were studied in six pure organic solvents with different polarities
4-羟基苯并〔ħ ]喹啉基-2-(1- ħ) -酮(IV)从3-(萘-1-基氨基)的环化缩合来合成-3-氧代丙酸(我)或ñ,ñ ' -二(萘-1-基)丙二酰胺(II),然后与重氮化的p偶联取代的苯胺衍生物。通过光谱和分析方法确定合成染料的结构。在六种不同极性的纯有机溶剂中研究了这些新型偶氮染料对紫外可见吸收光谱的溶剂影响。关于苯环上取代基的性质讨论了染料的颜色。通过1 H NMR光谱在DMSO-d 6和CDCl 3中研究了偶氮化合物的互变异构结构。还报道了酸和碱对染料可见吸收光谱的影响。电离常数,p K a,对于这些染料,在80体积中测定。在室温下%的乙醇-水介质,并与取代基常数,相关σ p。