Ni X, Li X, Li Z, Cheng JP. Equilibrium acidities of BINOL type chiral phenolic hydrogen bonding donors in DMSO.
Org Chem Front 2016. [DOI:
10.1039/c6qo00252h]
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Abstract
The pKa values of fifteen BINOL type chiral phenolic catalysts were determined by the overlapping indicator method in DMSO via UV spectrophotometric titrations. The pKa values are in the range of 9.30–16.43.
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