Cyclic Vinyl(aryl)iodonium Salts: Synthesis and Reactivity
作者:Konrad Kepski、Craig R. Rice、Wesley J. Moran
DOI:10.1021/acs.orglett.9b02540
日期:2019.9.6
A convenient, highly regioselective synthesis of five-membered cyclic vinyl(aryl)iodoniumsalts directly from β-iodostyrenes is presented. An X-ray crystal structure confirms the identity of these heterocycles. These λ3-iodanes can be converted rapidly into functionalized arylacetylenes by treatment with mild base or undergo SNV reactions with nonbasic nucleophiles.
Palladium-catalyzed carbomonofluoromethylation of unactivated alkenes: rapid access to γ-monofluoromethyl carboxylic acid derivatives
作者:Xiao-Li Liu、Shun-Jun Ji、Zhong-Jian Cai
DOI:10.1039/d3cc05380f
日期:——
Herein, we report a palladium-catalyzed regioselective carbomonofluoromethylation of unactivated alkenes. The reaction uses easily available fluorobis(phenylsulfonyl)methane (FBSM) as a fluoromethylating reagent, and proceeds smoothly with a wide variety of carbon electrophiles, including (hetero)aryl iodides, styrenyl iodides and TIPSBr. A range of remote γ-CH2F/CD2F carboxylic acid derivatives were