A general procedure for the synthesis of methylthio-, methylseleno- and methyltelluro-substituted aromatic compounds
作者:Lars Engman、Jonas S.E. Hellberg
DOI:10.1016/0022-328x(85)80366-1
日期:1985.12
A one-pot procedure is described which allows the facile introduction of one or two methylchalcogeno groups into a variety of monobromo or dibromo aromatics. The bromo compounds were converted to their corresponding lithio derivatives by treatment with t-butyllithium in tetrahydrofuran at −78°C, and these derivatives were then treated, at ambient temperature with elemental sulfur, selenium, or tellurium
An electrochemical method for deborylative selenylation of arylboronic acids under metal- and oxidant-free conditions
作者:Zhengjiang Fu、Jian Yin、Dongdong He、Xuezheng Yi、Shengmei Guo、Hu Cai
DOI:10.1039/d1gc02962b
日期:——
An efficient protocol to synthesize aryl selenoethers through deborylative selenylation of widely available arylboronicacids has been established underelectrochemicalconditions in the absence of metal catalyst and external oxidant. The synthesis of bioactive molecules and gram-scale transformation have been performed to highlight the synthetic utility of the protocol. CV (cyclic voltammetry) experiment
Nucleophilic aromatic substitutions of unactivated aryl halides by methyl selenide anions. Synthesis and selective dealkylations of aryl alkyl selenides