首页   按字顺浏览 期刊浏览 卷期浏览 Spectral Determination of the Structure of 5-Hydroxymethylfurfurylidene Barbituric Acid
Spectral Determination of the Structure of 5-Hydroxymethylfurfurylidene Barbituric Acid

 

作者: MarianN. Nikolov,   MirjanaV. Poneva,  

 

期刊: Spectroscopy Letters  （Taylor Available online 1987）
卷期: Volume 20, issue 10  

页码: 821-834

 

ISSN:0038-7010

 

年代: 1987

 

DOI:10.1080/00387018708081590

 

出版商: Taylor & Francis Group

 

关键词: 5-hydroxymethylfurfural;barbituric acid;5-hydroxymethylfurfurylidene barbituric acid;hexose moiety of glycoproteins

 

数据来源: Taylor

 

摘要:

5-hydroxymethylfurfural reacts with barbituric acid and forms a product with maximum absorbance at 395nm. Via UV-VIS and IR-spectra it becomes evident that in acidic conditions this compound has a conjugated system of bonds with a chynoide-like chromophore. In alkali conditions this chromophore breaks out and the solution is colorless. In this paper is reported a mechanism which is an attempt to explain the stages of this reaction.

 

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