2021-26-3

Upstream product

• 3676-85-5 4-aminophthalimide 
• 4433-11-8 3,4-dimethylbiphenyl 
• 7647-01-0 hydrogenchloride 
• 71-43-2 benzene 
• 6941-75-9 5-Bromoisoindoline-1,3-dione 
• 98-80-6 phenylboronic acid 
• 955-16-8 3,4-biphenyldicarboxylic anhydride 

Downstream Products

• 206881-65-4 (meso-tetraphenyl-4-tetraphenyltetrabenzoporphinato)zinc 
• 75884-74-1 6-phenyl-2,3-dihydro-phthalazine-1,4-dione 

Relevant academic research and scientific papers

Preparation of 4-phenylphthalonitrile by vapor-phase ammoxidation of 4-phenyl-o-xylene: Reaction kinetics

The kinetic features of the process of 4-phenylphthalonitrile synthesis by vapor-phase ammoxidation of 4-phenyl-o-xylene in the temperature range of 633-713 K have been studied. It has been shown that 4-phenylphthalonitrile is produced consecutively via 4-phenyl-o-tolunitrile as an intermediate. The 4-phenyl-o-xylene and 4-phenyl-o-tolunitrile conversion rates have been found to follow a half-order rate law in these components and to be independent of the oxygen and ammonia concentration. The kinetic behavior of the formation and consumption of byproducts are also discussed, their buildup rate equations are given, and possible reaction mechanisms are proposed. It has been revealed that the formation of the byproduct 4-phenylphthalimide at high ammonia concentrations is due to hydrolysis of 4-phenylphthalonitrile, carbon dioxide is produced via oxidation of 4-phenyl-o-xylene and decarboxylation of 4-phenylphthalimide, and 4-phenylbenzonitrile is produced from 4-phenyl-o-tolunitrile and 4-phenylphthalimide. Additional routes of the formation of 4-phenylphthalimide and CO2 from 4-phenyl-o-xylene appear at low ammonia concentrations. Pleiades Publishing, Ltd., 2012.

Cu-Catalyzed tandem: N -arylation of phthalhydrazides with cyclic iodoniums to yield dihydrobenzo [c] cinnolines

Dihydrocinnolines have significant pharmacological properties. Herein, we investigate a Cu-catalyzed tandem N-arylation reaction of phthalhydrazides with cyclic iodonium salts to construct dihydrobenzo[c]cinnoline derivatives. Various iodonium salts, such as symmetrical, unsymmetrical, aryl-aryl, and aryl-heteroaryl ones, could react with phthalhydrazides smoothly and give the title products in moderate to high yields. Moreover, the -NH2 group, which has been diarylated by cyclic iodonium salts to form carbazoles in previous reports, is also well tolerated in this work. This journal is

Vapor-phase oxidation and oxidative ammonolysis of some methyl derivatives of biphenyl

Main pathways arc established of catalytic oxidative transformations of 3,4-di- and 3,3',4,4'-tetramethylbiphenyls in vapor phase. The possibility is analyzed of obtaining the corresponding anhydrides, imides, and nitriles of biphenylcarboxylic acids in yields of up to 59-69%.