Methanesulfonic anhydride-promoted sustainable synthesis of thioesters from feedstock acids and thiols
作者:Pallavi Singh、Rama Krishna Peddinti
DOI:10.1007/s12039-020-01871-5
日期:2021.3
Abstract An unprecedented metal-, halogen- and solvent-free, MSAA-promoted S-carbonylation of thiols with feedstock acids has been developed. This new transformation provides an efficient and atom-economic strategy for the synthesis of thioesters in a single operation from readily available and inexpensive starting materials. The reaction avoids the use of expensive and hazardous coupling reagents
Visible-Light-Promoted Thiyl Radical Generation from Sodium Sulfinates: A Radical–Radical Coupling to Thioesters
作者:Ganganna Bogonda、Dilip V. Patil、Hun Young Kim、Kyungsoo Oh
DOI:10.1021/acs.orglett.9b01218
日期:2019.5.17
available starting materials: acid chlorides and sodium sulfinates. The facile generation of acyl radical species under the visible light photoredox conditions allows the formation of thiylradical species from sodium sulfinates via multiple single electron transfer reactions, where the final acyl radical-thiyl radical coupling has been accomplished. The direct radical–radical coupling strategy offers a mild
Harnessing the catalytic behaviour of 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP): An expeditious synthesis of thioesters
作者:Pallavi Singh、Rama Krishna Peddinti
DOI:10.1016/j.tetlet.2017.04.004
日期:2017.5
promoting the thiocarbonylation of acyl halides and thiols is disclosed. HFIP was recovered with ease and reused for further reactions without any loss of reactivity. Both aryl and alkylthiols bearing electron-donating and electron-withdrawing groups as well as aryl- and alkyl acyl halides worked well in this reaction. Inexpensive precursors, short reaction time, obviating workup, high atom economy, and