Metalation of secondary diaminophosphine boranes by alkali metal amides provides a robust and selective access route to a range of metal diaminophosphide boranes M[(R2 N)2 P(BH3 )] (M=Li, Na, K; R=alkyl, aryl) with acyclic or heterocyclic molecular backbones, whereas reduction of a chlorodiaminophosphine borane gave less satisfactory results. The metalated species were characterized in situ by NMR spectroscopy and in two cases isolated as crystalline solids. Single-crystal XRD studies revealed the presence of salt-like structures with strongly interacting ions. Synthetic applications of K[(R2 N)2 P(BH3 )] were studied in reactions with a 1,2-dichlorodisilane and CS2 , which afforded either mono- or difunctional phosphine boranes with a rare combination of electronegative amino and electropositive functional disilanyl groups on phosphorus, or a phosphinodithioformate. Spectroscopic studies gave a first hint that removal of the borane fragment may be feasible.
class="Chemical">Metalatioclass="Chemical">n of secoclass="Chemical">ndary class="Chemical">n class="Chemical">diaminophosphine boranes by alkalimetal amides provides a robust and selective access route to a range of metal diaminophosphide boranes M[(R2 N)2 P(BH3 )] (M=Li, Na, K; R=alkyl, aryl) with acyclic or heterocyclic molecular backbones, whereas reduction of a chlorodiaminophosphine borane gave less satisfactory results. The metalated species were characterized in situ by NMR spectroscopy and in two cases isolated as crystalline solids. Single-crystal XRD studies revealed the presence of salt-like structures with strongly interacting ions. Synthetic applications of K[(R2 N)2 P(BH3 )] were studied in reactions with a 1,2-dichlorodisilane and CS2 , which afforded either mono- or difunctional phosphine boranes with a rare combination of electronegative amino and electropositive functional disilanyl groups on phosphorus, or a phosphinodithioformate. Spectroscopic studies gave a first hint that removal of the borane fragment may be feasible.
Authors: Beatriz Cordero; Verónica Gómez; Ana E Platero-Prats; Marc Revés; Jorge Echeverría; Eduard Cremades; Flavia Barragán; Santiago Alvarez Journal: Dalton Trans Date: 2008-04-07 Impact factor: 4.390
Authors: Nick A Giffin; Arthur D Hendsbee; Tracey L Roemmele; Michael D Lumsden; Cory C Pye; Jason D Masuda Journal: Inorg Chem Date: 2012-10-25 Impact factor: 5.165
Authors: Markus Blum; Tobias Dunaj; Julius A Knöller; Christoph M Feil; Martin Nieger; Dietrich Gudat Journal: Chemistry Date: 2020-10-19 Impact factor: 5.236
Authors: Thomas D Hettich; Richard Rudolf; Christoph M Feil; Nicholas Birchall; Martin Nieger; Dietrich Gudat Journal: Chemistry Date: 2021-02-26 Impact factor: 5.236