1429328-85-7Relevant academic research and scientific papers
Syntheses and characterizations of α-iminopyridine compounds (alkylNCHpy)2Fe(L/Xn), and an assessment of redox non-innocence
Volpe, Emily C.,Wolczanski, Peter T.,Darmon, Jonathan M.,Lobkovsky, Emil B.
, p. 406 - 415 (2013)
Treatment of cis-(Me3P)4FeMe2 with two equiv neoPeNCH(2-py) afforded {κ-N,N′- neoPeNCH(2-pyridyl)}2FeMe2 (2-P). Reductions of FeCl2 with Na/Hg in the presence of neoPeNCH(2-pyridyl) or neoHexNCH(2-pyridyl) and L (H2CCHCO2Me, PhCCPh, PMe3) gave tentative evidence of {κ-N,N′- neoPeNCH(2-pyridyl)}2Fe(H2CCHCO2Me) (2-P), but {κ-N,N′-neoPeNCH(2-pyridyl)} 2Fe(PhCCPh) (5-P), {κ-N,N′-neoHexNCH(2- pyridyl)}2Fe(PhCCPh) (5-H), and {κ-N,N′- neoHexNCH(2-pyridyl)}2Fe(PMe3) (6-H) were all isolated in good yield. Phosphine complex 6-H could be alkylated with CH 3I or CH3OTf to afford [{κ-N,N′- neoHexNCH(2-pyridyl)}2Fe(PMe3)Me] +I- (7-H-I) or [{κ-N,N′- neoHexNCH(2-pyridyl)}2Fe(PMe3)Me]+ OTf- (7-H-OTf). [{κ-N,N′-RNCH(2-pyridyl)} 3Fe][OTf]2 (R = neoPe, 8-P-OTf; neoHex, 8-H-OTf) complexes were also prepared from Fe(OTf) 2 in order to identify potential byproducts in certain reactions. Compounds 2-P and 7-H-OTf were tested for ethylene oligomerization activity, to no avail. Complexes 2-P, 5-H, 6-H, and 7-H-OTf were structurally characterized and evaluated by Mo?ssbauer spectroscopy, and 5-H was shown to possess a redox non-innocent alkyne ligand, while the α-alkyliminopyridine ligands of 6-H were classified as radical anions, rendering all compounds describable as Fe(II).
