Literature DB >> 11671989

Acid-Base Equilibria in Nonpolar Media. 1. A Spectrophotometric Method for Acidity Measurements in Heptane.

Ivo Leito1, Toomas Rodima, Ilmar A. Koppel, Reinhard Schwesinger, Vladislav M. Vlasov.   

Abstract

A UV-vis spectrophotometric method for measurements of relative acidities in heptane has been developed. The phosphazene base t-BuP(4) is used as the deprotonating agent. Its protonated form is a good counterion for the anions of the acids because it is bulky, has delocalized charge, and therefore does not have specific interactions with the anions. A self-consistent scale of relative acidities in heptane spanning for 3 pK(a) units has been constructed.

Entities:  

Year:  1997        PMID: 11671989     DOI: 10.1021/jo9713013

Source DB:  PubMed          Journal:  J Org Chem        ISSN: 0022-3263            Impact factor:   4.354


  2 in total

1.  Chloride-Mediated Alkene Activation Drives Enantioselective Thiourea and Hydrogen Chloride Co-Catalyzed Prins Cyclizations.

Authors:  Dennis A Kutateladze; Corin C Wagen; Eric N Jacobsen
Journal:  J Am Chem Soc       Date:  2022-08-22       Impact factor: 16.383

2.  Structural Modulation of Chromic Response: Effects of Binding-Site Blocking in a Conjugated Calix[4]pyrrole Chromophore.

Authors:  Václav Březina; Shinsuke Ishihara; Jan Lang; Lenka Hanyková; Katsuhiko Ariga; Jonathan P Hill; Jan Labuta
Journal:  ChemistryOpen       Date:  2018-04-20       Impact factor: 2.911

  2 in total

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