19688-99-4Relevant articles and documents
Synthesis of phthalimides, isoindolin-1-ones and isoindolines bearing aminobenzoic acids as a new fluorescent compounds
Solis-Santos, Melchor,Ordó?ez, Mario,Ochoa-Terán, Adrián,Morales-Cueto, Rodrigo,Labastida-Galván, Victoria
, (2021/03/30)
Both experimental and theoretical methods were used in order to study the fluorescent properties of nine new compounds based on phthalimides, isoindolin-1-ones and isoindolines bearing aminobenzoic acids (2-aminobenzoic acid, 3-aminobenzoic acid and 4-aminobenzoic acid), which were obtained under mild reaction conditions. The photophysical properties of all the compounds were studied by electronic absorption and fluorescence spectroscopy in methanol solutions. All compounds exhibited fluorescence emission and high quantum yields. Additionally, it was found that the intramolecular charge in these donor-acceptor systems is significantly depending on electron-withdrawing substituents at the carboxylic acid position.
Nitrogen-centered radical-mediated C-H imidation of arenes and heteroarenes via visible light induced photocatalysis
Kim, Hyejin,Kim, Taehoon,Lee, Dong Gil,Roh, Sang Weon,Lee, Chulbom
supporting information, p. 9273 - 9276 (2014/08/05)
The C-H imidation of arenes and heteroarenes has been achieved via visible light induced photocatalysis. In the presence of an iridium(iii) photoredox catalyst, the reaction of aromatic substrates with N-chlorophthalimide furnishes the N-aryl products at room temperature through a nitrogen-centered radical mediated aromatic substitution.
REACTIONS OF CYCLIC ANHYDRIDES XVI. A NOVEL APPROACH TO ANGULAR OXYGENATED PYRROLOBENZOXAZINONES
Balasubramaniyan, V.,Argade, N. P.
, p. 835 - 842 (2007/10/02)
o-Carboxymaleanilic acids IIIa-g when treated with sodium acetate-acetic anhydride underwent double cyclisation leading to pyrrolobenzoxazinones Va-g carrying an angular acetate.A one-flask reaction of dimethylmaleic anhydride and phthalic anhydride with anthranilic acid furnished the angular hydroxy benzoxazinones IVh and IVi respectively, which were converted to the corresponding acetates Vh and Vi.The acetates Va, Vc, Vf, Vg and Vi underwent solvolysis to the corresponding methyl ethers (VII) on refluxing with anhydrous methanol.