861083-79-6Relevant academic research and scientific papers
Diarylation of chalcogen elements using arylboronic acids via copper- or palladium-catalyzed oxidative coupling
Taniguchi, Nobukazu
, p. 5818 - 5823 (2016/08/30)
Transition metal-catalyzed diarylations of sulfur, selenium and tellurium were achieved using arylboronic acids in air. A copper-catalyzed reaction of sulfur or selenium efficiently yielded numerous symmetrical diaryl sulfides or selenides in the presence of NH4BF4. However, the diarylation of tellurium was not possible using this method, and required a palladium catalyst in the presence of KI and air for the reaction to proceed.
An efficient one-pot approach to selenides: CuI-catalyzed reactions of magnesium selenolate with aryl or alkyl halides
Gao, Fei,Tang, Yu,Lin, Hemei,Yang, Jun,Zhang, Yuanming
, p. 787 - 793 (2013/07/26)
An efficient one-pot route to symmetrical selenides in GC with yields from 13 to 94% has been developed by CuI catalyzing reactions of magnesium organoselenolates with aryl or alkyl halides under mild conditions. It is suggested that selenium could leave from PhSeMgBr to form other RSeMgBr with RMgBr based on experimental results. Although the leaving selenium causes low yield of unsymmetrical selenides and complex products, it offers a slowly releasing selenium source in preparation of nano metal selenides, and a potential leaving group in nucleophilic substitution. The role of excess magnesium is proposed.
A novel and efficient synthesis of selenides
Lin, He M.,Tang, Yu,Li, Zhi H.,Liu, Kun D.,Yang, Jun,Zhang, Yuan M.
experimental part, p. 146 - 156 (2012/09/21)
Under nitrogen atmosphere, a simple and efficient procedure for the synthesis of symmetrical selenides has been developed by the reaction of aryl or alkyl halides with magnesium (1.5 equiv) and elemental selenium (1.0 equiv) in the absence of catalyst and ligand in THF and toluene under reflux at 86°C. This protocol has been utilized for the synthesis of a variety of symmetrical selenides in good to excellent yields. ARKAT-USA, Inc.
