22077-57-2Relevant articles and documents
Selenium dioxide promoted dinitrogen extrusion/direct selenation of arylhydrazines and anilines
Yaqoob Bhat, Mohammad,Kumar, Atul,Naveed Ahmed, Qazi
supporting information, (2020/03/19)
A novel, efficient, economical strategy for the coupling and direct selenation of arylhydrazines to selenides using SeO2 has been developed. Our method employs SeO2 as the selenium source with hydrazines as coupling reactants to generate selenides via dinitrogen extrusion. This reagent also helped to generate ArSe substitued aniline derivatives via C–H functionalization reaction in good yields. The application of this method in gram scale was also carried out.
A highly efficient method for the copper-catalyzed selective synthesis of diaryl chalcogenides from easily available chalcogen sources
Li, Yaming,Nie, Caiping,Wang, Huifeng,Li, Xiaoying,Verpoort, Francis,Duan, Chunying
experimental part, p. 7331 - 7338 (2012/01/06)
An efficient protocol for copper-catalyzed C-S or C-Se bond formation between aryl iodides and easily available chalcogen sources leading to diaryl chalcogenides is reported. A variety of symmetrical diaryl sulfides and diaryl selenides were synthesized in good to excellent yields. Unsymmetrical diaryl sulfides were also obtained in moderate yields from two different aryl iodides by a one-pot tandem process. This strategy was further successfully utilized for the synthesis of 2-phenylbenzo[b]thiophene and of [1]benzothieno[3,2-b] benzothiophene. A new Cu-catalyzed one-pot approach for the selective synthesis of symmetrical diaryl chalcogenides and unsymmetrical diarylsulfides with use of Na2S or Se as chalcogen sources has been developed. Copyright
