Silver(I)-mediated reaction of trimethylsilylated arylacetylenes with sulfonyl chlorides: Unexpected formation of vinyl sulfones
作者:Gui Sheng Deng、Teng Fei Sun
DOI:10.1016/j.cclet.2012.07.017
日期:2012.10
Abstract A novel reaction of trimethylsilylated arylacetylenes with sulfonyl chlorides was performed in the presence of silver nitrate or triflate. Conjugated vinyl sulfones as dramatic products were obtained in moderate yields and with Z -selectivity. A free radical mechanism has been proposed to account for the formation of the products.
Air Induced Phosphoryl Radical Mediated Stereoselective Hydrosulfonylation of Alkynes <i>via</i> Halogen Atom Transfer: Ingress of <i>Z</i>-Vinyl Sulfones
作者:Shashikant Tiwari、Manisha Kumari、Diwan S. Rawat
DOI:10.1021/acs.orglett.4c00539
日期:2024.3.22
phosphoryl radical is well-known to participate in addition reactions with alkenes/alkynes. Here, we report a novel reaction mode of the phosphoryl radical where it participates in halogen atom transfer (XAT) with electron deficient vinyl halides instead of a facile addition reaction. Nevertheless, in comparison with aryl and alkyl halides, the exploitation of vinyl halides into a carbon radical via XAT