Squaramide Equilibrium Acidities in DMSO
Organic Letters2014Vol. 16(6), pp. 1786–1789
Citations Over TimeTop 10% of 2014 papers
Abstract
A number of popular squaramide organocatalysts' acidities were determined by an overlapping indicator method in DMSO via UV spectrophotometric titrations. The pKa values are in the range of 8.37-16.46. The results may be helpful for the rational design and development of squaramide type new catalysts.
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