32586-68-8Relevant articles and documents
Copper(I)-catalyzed highly efficient synthesis of benzoselenazoles and benzotellurazoles
Fujiwara, Shin-Ichi,Asanuma, Yoshiaki,Shin-ike, Tsutomu,Kambe, Nobuaki
, p. 8087 - 8090 (2007)
(Chemical Equation Presented) A simple and practical useful synthetic method of 1,3-benzoselenazoles having a heteroatom substituent such as NRR', OR, and SR groups at the 2-position was developed by the copper(I)-catalyzed reaction of 2-bromophenyl (1) o
Ground and excited-state properties of 1,3-benzoselenazole derivatives: A combined theoretical and experimental photophysical investigation
Radatz, Catia Schwartz,Coelho, Felipe Lange,Gil, Eduarda Sangiogo,da Silveira Santos, Fabiano,Schneider, Juliana Maria Forain Miolo,Gon?alves, Paulo Fernando Bruno,Rodembusch, Fabiano Severo,Schneider, Paulo Henrique
, (2020/02/06)
A series of 1,3-benzoselenazole derivatives were prepared with different substituents by complementary methodologies starting from aldehydes or carboxylic acids, using sodium metabisulfite and tributylphosphine, respectively, according to the substituent
α-Keto Acids as Acylating Agents in the Synthesis of 2-Substituted Benzothiazoles and Benzoselenazoles
Lima, David B.,Penteado, Filipe,Vieira, Marcelo M.,Alves, Diego,Perin, Gelson,Santi, Claudio,Lenard?o, Eder J.
supporting information, p. 3830 - 3836 (2017/07/22)
Herein, we report the first decarboxylative oxidation of α-keto acids that is promoted by sodium metabisulfite (Na2S2O5) to obtain 2-substituted benzothiazoles and benzoselenazoles. Diaryl disulfides and diselenides were used as chalcogen sources, and the desired products were obtained in moderate to excellent yields. This protocol does not require an inert gas, transition metals, or harsh reaction conditions, and CO2 is released as an environmentally benign coproduct. The presence of Na2S2O5 was essential to guarantee that the reaction reached completion and afforded maximum product yields.
