PNP Ligands in Cobalt-Mediated Activation and Functionalization of White Phosphorus.
Angew Chem Int Ed Engl
; 61(47): e202210973, 2022 Nov 21.
Article
in En
| MEDLINE
| ID: mdl-36200566
ABSTRACT
Transition-metal mediated white phosphorus activation is of high interest as an ecological alternative to P4 chlorination pathway to the practically useful phosphorus products. Herein, we report a facile approach for P4 activation, transformation and subsequent functionalization using cobalt complexes bearing PNP ligands. The use of N,N-bis(diphenylphosphino)amine as a ligand allows one to transform P4 tetrahedron into a zig-zag chain with the formation of complex [Co(Ph2 PNHP(Ph2 )PPPPP(Ph2 )NHPPh2 )]BF4 (4). The presence of organic substituent at nitrogen atom in PNP ligand enables one to obtain complexes with η1 -coordinated P4 molecule, which indicates a crucial role of N-H bond in transformation of white phosphorus tetrahedron. Additionally, complex 4 can readily be functionalized by means of the reaction with Ph2 PCl leading to the formation of a new complex bearing unique P9 -ligand. The obtained results provide opportunities for facile construction of new polyphosphorus ligands in the coordination sphere of transition metal complexes.
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01-internacional
Database:
MEDLINE
Language:
En
Journal:
Angew Chem Int Ed Engl
Year:
2022
Type:
Article