WebWe report here in an efficient electrochemical oxidative selenosulfonylation of alkynes and oxysulfonylation of alkenes without use of metal catalysts. This method provides a practical access to a wide range of β-(seleno)vinyl sulfones and β-keto sulfones. These reactions can tolerate various functional groups and be easily scaled-up. WebMay 23, 2013 · New channel! A novel and attractive dioxygen activation by sulfinic acids was explored that is capable of performing efficiently without the assistance of transition metals or radical initiators. Thi...
Electrochemical Oxidation‐induced Difunctionalization of …
WebJul 26, 2016 · Visible light along with 1 mol% eosin Y catalyzed the direct oxysulfonylation of alkenes with sulfinic acids via a photoredox process which has been developed at room temperature under transition-metal-free conditions. The present reaction provides a highly efficient approach to diverse β-ketosulfones in mod WebThe combination of 4-substituted pent-4-en-1-ols, DABCO· (SO 2) 2, and aryldiazonium tetrafluoroborates under mild conditions in the presence of a photocatalyst provides sulfonated 2,2-disubstituted tetrahydrofurans in moderate to good yields. marion county gun permit application
Oxy-sulfonylation of terminal alkynes via C–S coupling enabled by ...
WebJun 1, 2024 · The oxysulfonylation of alkenes or alkynes appeared as an easy alternative for the synthesis of β-keto-sulfones. The oxysulfonylation is based on the reaction of alkenes or alkynes with... WebNov 25, 2024 · As a yolk-shell-structured bifunctional magnet catalyst, the FeCl 3 species enables an efficient aerobic oxysulfonylation between aryl-substituted terminal alkynes and sodium sulfinates to the β-keto sulfones intermediates, and the ruthenium/diamine species sequentially reduces the in-situ generated intermediate to the chiral β ... WebApr 23, 2014 · As evident from the table, aryl alkynes proved to be excellent substrates for the aerobic oxysulfonylation. Both electron-rich (R = Me or OMe) and electron-poor (R = Br, … naturlandhof braun pegnitz