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Analytical Investigation of N1and N2Isomers of Indazole-3-Carboxylic Acid. Unambiguous Structure Assignment by UV Derivative Spectrophotometry

 

作者: C. Vetuschi,   G. Ragno,   L. Baiocchi,   P. Ridolfi,  

 

期刊: Spectroscopy Letters  （Taylor Available online 1989）
卷期: Volume 22, issue 4  

页码: 375-385

 

ISSN:0038-7010

 

年代: 1989

 

DOI:10.1080/00387018908053887

 

出版商: Taylor & Francis Group

 

关键词: UV derivative;Structural isomery;Halobenzyl-indazole-3-carboxylic acids.

 

数据来源: Taylor

 

摘要:

Several isomers N1and N2substituted indazole-3-carboxylic acids were prepared and their data obtained from current analysis, mp, IR, NMR, TLC were reported. Utilizing these values, it is very difficult to determine to which of the two isomeric structures a product corresponds. On the contrary with the use of UV derivative spectrophotometry it is simple to establish if a product alone, somehow substituted, corresponds to one or to other structure.

 

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