Catalytic enantioselective fluorination and amination of beta-keto phosphonates catalyzed by chiral palladium complexes

Org Lett. 2005 Jun 9;7(12):2309-11. doi: 10.1021/ol050413a.

Abstract

[reaction: see text] The catalytic enantioselective fluorination and amination of beta-keto phosphonates catalyzed by chiral palladium complexes is described. Treatment of beta-keto phosphonates with N-fluorobenzenesulfonimide (NFSI) as electrophilic fluorinating reagent and diethyl azodicarboxylate (DEAD) as electrophilic amination reagent under mild reaction conditions afforded the corresponding alpha-substituted beta-keto phosphonates in moderate to excellent yields with excellent enantiomeric excesses.