Answers are grounded in this paper and cite their sources.
A catalytic desymmetrization is achieved for various prochiral dicarboxylic anhydrides with yields of 87–100 % and ee values of 83–98 % through the title reaction (see scheme; Bn=benzyl). The bifunctional effect of the chiral sulfonamide catalyst was clarified on the basis of unsuccessful asymmetric induction by using the related chiral sulfonamides.
No takes yet. Share an insight, caveat, or question.
Honjo et al. (2005) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: