title: Lewis acid assisted methyl/chlorine exchange in silylated hydrazinochlorophosphanes.
abstract: Differently substituted hydrazinophosphanes of the type (Me(3)Si)(2)N-N(SiMe(3))-PR(1)R(2) (R(1) = Cl with R(2) = Me, C(6)F(5) and R(1) = Me, R(2) = C(6)H(5)) have been studied in the reaction with Lewis acids such as ECl(3) (E = Al, Ga). For (Me(3)Si)(2)N-N(SiMe(3))-P(Cl)(Me) and (Me(3)Si)(2)N-N(SiMe(3))-P(Me)(C(6)H(5)), only adduct formation was found while a chlorine/methyl exchange reaction was observed for (Me(3)Si)(2)N-N(SiMe(3))-P(Cl)R (R = C(6)H(5) and C(6)F(5)) leading to the formation of (Me(2)ClSi)(Me(3)Si)N-N(SiMe(3))-P(Me)R, which crystallize as ECl(3) adducts. The free hydrazinophosphanes can be obtained by removal of the Lewis acid with the help of a strong base such as 4-(dimethylamino)pyridine (DMAP).
authors.affiliation: Institut für Chemie, Abteilung Anorganische Chemie, Universität Rostock, Albert-Einstein-Strasse 3a, 18059 Rostock, Germany.
authors.forename: Andrea
authors.initials: A
authors.lastname: Westenkirchner
authors.forename: Alexander
authors.initials: A
authors.lastname: Villinger
authors.forename: Konstantin
authors.initials: K
authors.lastname: Karaghiosoff
authors.forename: Ronald
authors.initials: R
authors.lastname: Wustrack
authors.forename: Dirk
authors.initials: D
authors.lastname: Michalik
authors.forename: Axel
authors.initials: A
authors.lastname: Schulz
mesh_terms: D018360:Crystallography, X-Ray; D008958:Models, Molecular; D015394:Molecular Structure; D017646:Organosilicon Compounds / Q000138:chemical synthesis* / Q000737:chemistry*; D010720:Phosphines / Q000737:chemistry*; D012825:Silicon / Q000737:chemistry*; D013237:Stereoisomerism
chemical_list: D017646:Organosilicon Compounds; D010720:Phosphines; D012825:Silicon