856074-00-5Relevant articles and documents
Solvent selective phenyl selenylation and phenyl tellurylation of aryl boronic acids catalyzed by Cu(II) grafted functionalized polystyrene
Roy, Susmita,Chatterjee, Tanmay,Islam, Sk. Manirul
, p. 779 - 783 (2015)
A solvent-selective methodology for the phenyl selenylation and phenyl tellurylation of aryl boronic acids has been developed for the first time using a polymer supported Cu(II) catalyst. The catalyst was synthesized by anchoring Cu(OAc)2 onto a functionalized polystyrene with pyridine thiosemicarbazone ligand. It was then characterized properly by SEM, EDAX, FT-IR, TGA, and EPR experiments. The catalyst smoothly catalyzes phenyl selenylation of aryl boronic acids in water and phenyl tellurylation of aryl boronic acids in PEG-600, selectively. Thus a wide variety of unsymmetrical organodiaryl or aryl-heteroaryl selenides and tellurides have been synthesized by this protocol. The catalyst was recycled up to six runs without any appreciable loss of catalytic activity.
Method for preparing asymmetric organic selenium ether compounds through metal-free chemical oxidation method (by machine translation)
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Paragraph 0059-0063, (2020/12/09)
The method is mild in reaction condition, convenient to operate, high in 1 reaction condition, convenient 2 to operate, high in safety, wide in substrate range, high 2 - 8h in yield, particularly suitable for reaction of various poor 3 electric and sterically hindered arylboronic acid and diselenoxy ether, and capable of finishing most of the reaction 4h. (by machine translation)
