Facile synthetic routes to a chiral chloro-substituted biphenyl-2,2′- diyl hydrogen phosphate and a chiral O,O-biphenyl-2,2′-diyl phosphoramidothioate are described. The performance of these compounds as catalysts for the hydrophosphorylation of imines and the Friedel-Crafts alkylation of indole was investigated. In the latter reaction, the chlorosubstituted phosphoric acid derivative was found to rival the best Bronsted acid catalysts reported to date.
- Asymmetric catalysis
- Chiral resolution
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Organic Chemistry