84333-73-3Relevant articles and documents
Silver-catalyzed arylation of (hetero)arenes by oxidative decarboxylation of aromatic carboxylic acids
Kan, Jian,Huang, Shijun,Lin, Jin,Zhang, Min,Su, Weiping
supporting information, p. 2199 - 2203 (2015/02/19)
A long-standing challenge in Minisci reactions is achieving the arylation of heteroarenes by oxidative decarboxylation of aromatic carboxylic acids. To address this challenge, the silver-catalyzed intermolecular Minisci reaction of aromatic carboxylic acids was developed. With an inexpensive silver salt as a catalyst, this new reaction enables a variety of aromatic carboxylic acids to undergo decarboxylative coupling with electron-deficient arenes or heteroarenes regardless of the position of the substituents on the aromatic carboxylic acid, thus eliminating the need for ortho-substituted aromatic carboxylic acids, which were a limitation of previously reported methods.
Synthesis of Stable 1,2-Diazocines, 4,7-Disubstituted 3,8-Diaryl-1,2-diazacycloocta-2,4,6,8-tetraenes and Their Thermolysis
Yogi, Seiichi,Hokama, Kozo,Ueno, Kazunori,Tsuge, Otohiko
, p. 1087 - 1094 (2007/10/02)
Stable 1,2-diazocines, 3,8-diaryl-4,6-dichloro-1,2-diazacycloocta-2,4,6,8-tetraenes, were prepared via a chlorination-dehydrochlorination sequence starting from readily-available 3,8-diaryl-1,2-diazacycloocta-2,4-dienes.When reacted with metal caroxylates in benzene under reflux, the dichloro-1,2-diazocines were converted into stable 4-acyloxy- and/or 4,7-is(acyloxy)-1,2-diazocines.On the thermolysis in toluene under reflux, all the diazocines gave only pyridine derivatives with extrusion of the corresponding benzonitriles.The thermal behavior of the diazocines are also discussed.
