Equilibrium acidities of cinchona alkaloid organocatalysts bearing 6′-hydrogen bonding donors in DMSO
Author:
Affiliation:
1. State Key Laboratory of Elemento-Organic Chemistry
2. Department of Chemistry
3. Nankai University
4. Tianjin 300071
5. China
6. Collaborative Innovation Center of Chemical Science and Engineering
7. Center of Basic Molecular Science
Abstract
The pKa values of 18 cinchona alkaloid based organocatalysts bearing 6′-hydrogen bonding donors were determined by the overlapping indicator method in DMSO via UV spectrophotometric titrations. The pKa values are in the range of 6.76–20.24.
Publisher
Royal Society of Chemistry (RSC)
Subject
Organic Chemistry
Link
http://pubs.rsc.org/en/content/articlepdf/2016/QO/C5QO00305A
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