title: A congested in,in-diphosphine.
abstract: The synthesis and characterization of the bis(triarylphosphine) 3 are described. Slow protonation of an inwardly directed phosphine is possible, but the phosphines do not react with larger reagents. X-ray structures of the parent compound, its HCl salt, and the corresponding trisulfone are reported. Compound 3 was resolved by chiral chromatography, but the barrier to racemization is only 20.7 kcal/mol.
authors.affiliation: Department of Chemistry, Tulane University, New Orleans, Louisiana 70118, United States.
authors.forename: Jie
authors.initials: J
authors.lastname: Zong
authors.forename: Joel T
authors.initials: JT
authors.lastname: Mague
authors.forename: Christina M
authors.initials: CM
authors.lastname: Kraml
authors.forename: Robert A
authors.initials: RA
authors.lastname: Pascal