80-82-0Relevant articles and documents
Lowe
, p. 2061 (1976)
Method for synthesizing orthanilic acid by hydrogenation method
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Paragraph 0027; 0028; 0029; 0030, (2019/01/14)
The invention discloses a method for synthesizing orthanilic acids by a hydrogenation method. The synthesis method comprises the following steps: performing sulfonation reaction on o-nitrochlorobenzene with nitrosonitric acid and concentrated sulfuric acid, and separating high-purity o-Nitrobenzenesulphonic acid after completion of the reaction; forming a clathrum with nitrogen-doped porous coatedcarbon palladium or platinum catalyst, transferring o-Nitrobenzenesulphonic acid to an atomizer for atomization, and adding o-Nitrobenzenesulphonic acid solid in the bottom of a kettle and liquefying; firstly pumping into dry hydrogen gas, starting stirring and circulation reflux, spraying the atomized o-Nitrobenzenesulphonic acid into the kettle, and stoping the reflux after the reaction is completed; introducing the nitrogen gas firstly to exhaust the gas, then crystallizing orthanilic acid, centrifugally separating liquid solid after crystallization and performing suction filtration, and then baking the solid at high temperature to obtain orthanilic acid. The method for synthesizing orthanilic acids by the hydrogenation method uses nitrogen-doped porous carbon as a catalyst carrier andthe catalyst is made into a lattice for gas-gas reaction, and then the reflux and spraying of liquefied o-Nitrobenzenesulphonic acid is circulated, thus producing a high-purity substrate.
Development of 1-Hydroxy-2(1H)-quinolone-Based Photoacid Generators and Photoresponsive Polymer Surfaces
Ikbal, Mohammed,Banerjee, Rakesh,Atta, Sanghamitra,Jana, Avijit,Dhara, Dibakar,Anoop, Anakuthil,Singh, N. D. Pradeep
, p. 11968 - 11975 (2012/10/29)
A new class of carboxylate and sulfonate esters of 1-hydroxy-2(1H)- quinolone has been demonstrated as nonionic photoacid generators (PAGs). Irradiation of carboxylates and sulfonates of 1-hydroxy-2(1H)-quinolone by UV light (γ≥310 nm) resulted in homolysis of weak N-O bond leading to efficient generation of carboxylic and sulfonic acids, respectively. The mechanism for the homolytic N-O bond cleavage was supported by time-dependent DFT calculations. Photoresponsive 1-(p-styrenesulfonyloxy)-2-quinolone-methyl methacrylate (SSQL-MMA) and 1-(p-styrenesulfonyloxy)-2-quinolone-lauryl acrylate (SSQL-LA) copolymers were synthesized from PAG monomer 1-(p-styrenesulfonyloxy) -2-quinolone, and subsequently controlled surface wettability was demonstrated for the above-mentioned photoresponsive polymers. Copyright