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ChemInform Abstract: Chiral Bronsted Acids for Asymmetric Organocatalysis

✍ Scribed by Daniela Kampen; Corinna M. Reisinger; Benjamin List

Publisher
John Wiley and Sons
Year
2011
Weight
18 KB
Volume
42
Category
Article
ISSN
0931-7597

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## Abstract A general approach to the synthesis of optically pure 3,3′‐diaryl chiral sulfonimides (CSIs) from racemic BINOL has been developed. __ortho__‐Lithiation is directed by the sulfonyl groups, and the resulting dihalides serve as the common precursors for the aryl‐substituted CSIs.