title: Alternating stereoselective self-assembly of SSSS/RRRR or RSSR isomers of tetrakisphosphines in the row of 14-, 16-, 18- and 20-membered macrocycles.
abstract: Novel 18- and 20-membered P,N-macrocycles have been obtained stereoselectively by covalent self-assembly of α,ω-bisphosphines, formaldehyde and benzylamine. Alternating SSSS/RRRR or RSSR diastereomers were formed in the row of the 14-, 16-, 18- and 20-membered macrocyclic aminomethylphosphines. For the first time it was demonstrated that the stereochemical result of the reaction depends on the even or odd number of the methylene groups between the two chiral phosphorus atoms in the initial α,ω-bisphosphines.
authors.affiliation: A.E. Arbuzov Institute of Organic and Physical Chemistry, Russian Academy of Sciences, Kazan Scientific Center, Arbuzov str. 8, Kazan, Russian Federation420088. elli@iopc.ru.
authors.forename: Roman N
authors.initials: RN
authors.lastname: Naumov
authors.forename: Elvira I
authors.initials: EI
authors.lastname: Musina
authors.forename: Kirill B
authors.initials: KB
authors.lastname: Kanunnikov
authors.forename: Tatiana I
authors.initials: TI
authors.lastname: Fesenko
authors.forename: Dmitry B
authors.initials: DB
authors.lastname: Krivolapov
authors.forename: Igor A
authors.initials: IA
authors.lastname: Litvinov
authors.forename: Peter
authors.initials: P
authors.lastname: Lönnecke
authors.forename: Evamarie
authors.initials: E
authors.lastname: Hey-Hawkins
authors.forename: Andrey A
authors.initials: AA
authors.lastname: Karasik
authors.forename: Oleg G
authors.initials: OG
authors.lastname: Sinyashin