106501-83-1Relevant academic research and scientific papers
Chromium-53 Nuclear Magnetic Resonance Studies of Pentacarbonylchromium-Carbene Complexes
Hafner, Andreas,Hegedus, Louis S.,deWeck, Guy,Hawkins, Bruce,Doetz, Karl H.
, p. 8413 - 8421 (2007/10/02)
The 53Cr NMR spectra of 46 chromium-carbene complexes were recorded, and chemical shift and line width data are reported, along with associated, UV-visible, and 13C NMR spectroscopic data.The 53Cr chemical shifts correlated very well with the donor-accept
Synthesis of Amino-β-lactams by the Photolytic Reaction of Imines with Pentacarbonylchromium(0)
Borel, Christian,Hegedues, Louis S.,Krebs, Jurg,Satoh, Yoshitaka
, p. 1101 - 1105 (2007/10/02)
Chromium-carbene complexes containing the group were synthesized by the reaction of Vilsmeir's salts with Cr(CO)52-.These carbenes were remarkably air stable and resistant to attack by nucleophiles.Photolytic reaction of these complexes with imines, oxazines, oxazolines, imidates, thiazines, and thiazolines produced β-lactams in fair to good yield.In most cases trans stereochemistry was observed.Representative dibenzylamino-β-lacatms were debenzylated to produce β-lactams having a free NH2 group α to the lactam carbonyl group.
