title: Quinidine thiourea-catalyzed enantioselective synthesis of β-nitrophosphonates: Beneficial effects of molecular sieves.
abstract: An efficient method for enantioselective synthesis of β-nitrophosphonates via the Michael addition of diphenyl phosphite to nitroalkenes using the readily available quinidine thiourea organocatalyst has been developed. The desired β-nitrophosphonates were obtained in good ee values. Molecular sieves were found to be crucial for achieving high reproducible yields in this reaction.
authors.affiliation: Department of Chemistry, University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas 78249, USA.
authors.forename: Santhi
authors.initials: S
authors.lastname: Abbaraju
authors.forename: Mayur
authors.initials: M
authors.lastname: Bhanushali
authors.forename: Cong-Gui
authors.initials: CG
authors.lastname: Zhao