Polynuclear Branched Tetrazole Systems. 2. New 2-(5-Tetrazolyl)ethylpodands and Their NH-Acidity View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2003-10

AUTHORS

V. Yu. Zubarev, E. V. Bezklubnaya, A. K. Pyartman, R. E. Trifonov, V. A. Ostrovskii

ABSTRACT

Nine new polynuclear 2-(5-tetrazolyl)ethyl podands have been obtained by the azidation of the corresponding nitriles. Using Bjerrum distribution functions, the values of pKa1, pKa2, pKa3, and pKa4 have been determined by a potentiometric method for 14 polynuclear tetrazoles in aqueous and aqueous methanolic solution. The found values lie in the range from 3.5 to 7.5 pH units. The overall rules and the sequence of the ionization of the spatially separated tetrazole fragments in these podand systems are discussed. More... »

PAGES

1317-1325

Identifiers

URI

http://scigraph.springernature.com/pub.10.1023/b:cohc.0000010646.77507.bb

DOI

http://dx.doi.org/10.1023/b:cohc.0000010646.77507.bb

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1031431381


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