A Recyclable Biphasic System for Stereoselective and Easily Handled Hydrochalcogenations
作者:Caterina Tidei、Luca Sancineto、Luana Bagnoli、Benedetta Battistelli、Francesca Marini、Claudio Santi
DOI:10.1002/ejoc.201402668
日期:2014.9
Vinyl selenides and vinyl sulfides were prepared by hydrochalcogenation of alkynes with selenols and thiols generated in situ by the reduction of the corresponding diselenides and disulfides with elemental zinc in a biphasic acidic medium. The yields, stereoselectivity as well as the possibility of reusing the aqueous medium up to ten times are discussed.
通过在双相酸性介质中用元素锌还原相应的二硒化物和二硫化物而原位生成的硒醇和硫醇,通过炔烃与硒醇和硫醇的氢化硫属化反应制备乙烯基硒化物和乙烯基硫化物。讨论了产率、立体选择性以及将水性介质重复使用多达十次的可能性。