以
neat (no solvent, solid phase) 为溶剂,
以80%的产率得到[iron(II)(bis(trimethylsilyl)amido)2(pyridine)]
参考文献:
名称:
Reactions of M{N(SiMe3)2}2 (M=Mn, Fe or Co) with pyridine and 4,4′-bipyridyl: structural and magnetic studies
摘要:
The reactions of the aromatic nitrogen donor ligands pyridine (py) and 4,4'-bipyridyl (4,4-bipy) with the transition metal silylamides M{N(SiMe3)(2)}(2) (M = Mn, Fe or Cc) were investigated. Treatment of the metal amides with pyridine afforded the bispyridine complexes M{N(SiMe3)(2)}(py)(2) (M = Mn, 1a; Fe, 2a; Co, 3a). Distillation or sublimation of 2a or 3a afforded the monopyridine complexes M{N(SiMe3)(2)}(2)(py) (M = Fe, 2b; Co, 3b). The addition of pyrazine (prz) to Mn{N(SiMe3)(2)}(2) also yielded the bispyrazine adduct Mn{N(SiMe3)(2)}(2)(prz)(2), 1b. However, the reaction of 4,4'-bipyridyl with Fe{N(SiMe3)(2)}(2) or Co{N(SiMe3)(2)}(2) afforded the polymeric chain-like complexes {M{N(SiMe3)(2)}(2)(4,4'-bipy)}(infinity) (M = Fe, 4; Co, 5). With the exception of 2b, all complexes were characterized by X-ray crystallography. The complexes la, 1b, 2a and 3a displayed monomeric structures and metal geometries that are based on a tetrahedron with interligand angles that deviate markedly from idealized values. Complex 3b was found to have a distorted trigonal planar geometry. In contrast, complexes 4 and 5 displayed polymeric zig-zag chain structures which have four coordinate metal centers connected by 4,4'-bipyridyl ligands. Magnetic studies indicated that complexes 1-3b have high-spin electron configurations and that the paramagnetic centers in 4 and 5 did not interact with each other through the 4,4'-bipyridyl ligands. (C) 2002 Elsevier Science Ltd. All rights reserved.
Reactions of M{N(SiMe3)2}2 (M=Mn, Fe or Co) with pyridine and 4,4′-bipyridyl: structural and magnetic studies
摘要:
The reactions of the aromatic nitrogen donor ligands pyridine (py) and 4,4'-bipyridyl (4,4-bipy) with the transition metal silylamides M{N(SiMe3)(2)}(2) (M = Mn, Fe or Cc) were investigated. Treatment of the metal amides with pyridine afforded the bispyridine complexes M{N(SiMe3)(2)}(py)(2) (M = Mn, 1a; Fe, 2a; Co, 3a). Distillation or sublimation of 2a or 3a afforded the monopyridine complexes M{N(SiMe3)(2)}(2)(py) (M = Fe, 2b; Co, 3b). The addition of pyrazine (prz) to Mn{N(SiMe3)(2)}(2) also yielded the bispyrazine adduct Mn{N(SiMe3)(2)}(2)(prz)(2), 1b. However, the reaction of 4,4'-bipyridyl with Fe{N(SiMe3)(2)}(2) or Co{N(SiMe3)(2)}(2) afforded the polymeric chain-like complexes {M{N(SiMe3)(2)}(2)(4,4'-bipy)}(infinity) (M = Fe, 4; Co, 5). With the exception of 2b, all complexes were characterized by X-ray crystallography. The complexes la, 1b, 2a and 3a displayed monomeric structures and metal geometries that are based on a tetrahedron with interligand angles that deviate markedly from idealized values. Complex 3b was found to have a distorted trigonal planar geometry. In contrast, complexes 4 and 5 displayed polymeric zig-zag chain structures which have four coordinate metal centers connected by 4,4'-bipyridyl ligands. Magnetic studies indicated that complexes 1-3b have high-spin electron configurations and that the paramagnetic centers in 4 and 5 did not interact with each other through the 4,4'-bipyridyl ligands. (C) 2002 Elsevier Science Ltd. All rights reserved.
Facilitating the Ferration of Aromatic Substrates through Intramolecular Sodium Mediation
作者:Lewis C. H. Maddock、Manting Mu、Alan R. Kennedy、Max García‐Melchor、Eva Hevia
DOI:10.1002/anie.202104275
日期:2021.7.5
effects between Na and FeII centres present in tris(amide) ferrate complexes has led to the chemoselective ferration of pentafluorobenzene, benzene, toluene, anisole, and pyridine being realised at room temperature. The importance of this bimetallic partnership is demonstrated by neither the relevant sodiumamide (NaHMDS or NaTMP) nor the FeII amide Fe(HMDS)2 efficiently metallating these substrates