A three-component reaction of olefin, diselenide and water, alcohols, phenol, carboxylic acid, or amine by a commercially available hypervalent iodine(III) reagent, PhIO, was developed. This method provides access to a wide range of vicinally functionalized selenoderivatives under ambient conditions with mostly excellent yields and high diastereoselectivity. The developed reaction displays high levels
A visible-light-induced oxidativecoupling of diselenides with readily available vinylarenes is demonstrated. This benign protocol allows one to access a wide range of α-aryl and α-alkyl selenomethyl ketones in good yields with excellent functional group compatibility. The distinct advantages of this protocol over all previous methods include the use of a green solvent and air as an oxidant and the
The photoredox-catalyzed hydrosulfamoylation of styrenes and its application in the novel synthesis of naratriptan
作者:Mingjun Zhang、Miaomiao Chen、Xin Ding、Jin Kang、Yongyue Gao、Xingxing He、Ziwen Wang、Aidang Lu、Qingmin Wang
DOI:10.1039/d1cc04225d
日期:——
The hydrosulfamoylation of diverse arylolefins provides facile access to alkylsulfonamides. Here we report a novel protocol utilizing radical-mediated addition and a thiol-assisted strategy to achieve the hydrosulfamoylation of diverse styrenes in modest to excellent yields under mild and economic reaction conditions. The methodology was found to provide an efficient and convenient approach for the
An intermolecular aminoselenation of alkenes with sulfonimides and diselenides is achieved via a visible-light-induced three component reaction. A broad variety of aminoselenation products is accessible in good yields with excellent functional group compatibility. Additional features of this new protocol include being additive- and photocatalyst-free and the use of natural sunlight as well as suitability
Cobalt-Catalyzed Divergent Aminofluorination and Diamination of Styrenes with <i>N</i>-Fluorosulfonamides
作者:Peng Guo、Jun-Fa Han、Guo-Cai Yuan、Lin Chen、Jia-Bin Liao、Ke-Yin Ye
DOI:10.1021/acs.orglett.1c01308
日期:2021.5.21
A cobalt-catalyzed aminofluorination reaction of styrenes with N-fluorosulfonamides serving as both the amination and fluorination agents has been developed. The switch of selectivity in this catalytic reaction from aminofluorination to diamination could be easily achieved by the addition of 1.0 equiv of PPh3. Both transformations tolerated a wide array of substrates under mild reaction conditions