24676-90-2Relevant academic research and scientific papers
The aminocarbonylation of 1,2-diiodoarenes with primary and secondary amines catalyzed by palladium complexes with imidazole ligands
Wójcik, Przemys?aw,Trzeciak, Anna M.
, p. 73 - 83 (2018/05/22)
The efficient carbonylative cyclization of 1,2-diiodobenzene with different primary and secondary amines was performed using a palladium complex with an imidazole ligand, PdCl2(BIM)2, as a catalyst. In reactions performed at 1 atm of CO with primary amines, phthalimides were obtained as the only products with yields of up to 100% in 4 h. An even shorter time, 1 h, was sufficient to obtain the same products employing methyl-2-iodobenzoate as a substrate instead of 1,2-diiodobenzene. In an analogous reaction with secondary amines, 1,2-diiodobenzene was converted to three products, formed in amounts dependent on the reaction conditions. The presence of Pd NPs and soluble palladium intermediates indicated their participation in the catalytic reaction.
Ion Chemistry of Phthalamic Acids III. The Origin of (1+) Ions Under Electron Impact
Selva, Antonio,Traldi, Pietro,Ventura, Paolo,Pellegata, Renato
, p. 343 - 346 (2007/10/02)
Electron impact mass spectra and collisional activation/mass analysed ion kinetic energy spectra of some phthalamic acids and their deuterium labelled analogues suggested that the genesis of (1+) ions is due to the loss of an aromatic hydrogen ortho to the amidic group, as for aromatic amides and thioamides.
