52262-63-2Relevant articles and documents
Six-coordinate uranium complexes featuring a bidentate anilide ligand
Fox, Alexander R.,Silvia, Jared S.,Townsend, Erik M.,Cummins, Christopher C.
experimental part, p. 781 - 789 (2011/11/12)
The synthesis of a new bidentate anilide ligand and four uranium amide complexes utilizing the ligand are reported. The secondary aniline HN[R]Ar MeL (R = C(CD3)2CH3, Ar MeL = 2-NMe2-5-MeC
Mono-nitration of aromatic compounds via their nitric acid salts
Zhang, Pingsheng,Cedilote, Miall,Cleary, Thomas P.,Pierce, Michael E.
, p. 8659 - 8664 (2008/03/30)
Aromatic compounds bearing a basic nitrogen atom can be converted to the corresponding nitric acid salts. Mono-nitration of the compounds can be carried out by adding a dichloromethane solution of the salts to sulfuric acid, or by adding acetyl chloride (or trifluoroacetic anhydride) to a dichloromethane solution of the salts. This protocol provides, among other benefits, the most convenient and reliable way for the prevention of over-/under-nitration and is especially suitable for scale-up.
Succinimidylation and nitration of aromatic compounds by photolysis with N-nitrosuccinimide
Calvert, Jane,Eberson, Lennart,Hartshorn, Michael P.,Svensson, Jan O.
, p. 645 - 652 (2007/10/02)
N-Nitrosuccinimide (S-NO2) engages in weak charge transfer complexes with aromatic compounds (ArH).Upon photolysis with light of λ > 345 nm in dichloromethane, electron transfer within the charge transfer complex leads to the triad -NO2>from which products of eventual succinimidylation and/or nitration develop by initial attack of succinimide anion upon the radical cation.Photolysis in the presence of trifluoroacetic acid (0.4 mol dm-3) causes inactivation of S- by protonation, making EPR detection of ArH-radical cations or radicals cations formed by its further transformations possible.In acetonitrile, trifluoroacetic acid is too weak effectively to protonate S-, whereas addition of stronger acids again leads to the development of EPR spectra of ArH-radical cation in the case of 9,10-dimethylanthracene, the intensity increasing with decreasing pK of the acid.An X-ray crystal structure is reported for N-nitrosuccinimide.
