65880-87-7Relevant academic research and scientific papers
Copper-promoted direct C-H alkoxylation of: S, S -functionalized internal olefins with alcohols
Liu, Zhuqing,Huang, Fei,Lou, Jiang,Wang, Quannan,Yu, Zhengkun
supporting information, p. 5535 - 5540 (2017/07/12)
Copper-promoted direct C-H alkoxylation of S,S-functionalized internal olefins, that is, α-oxo ketene dithioacetals, was efficiently achieved with alcohols as the alkoxylating agents, (diacetoxyiodo)benzene (PhI(OAc)2) as the oxidant, and benzoquinone (BQ) as the co-oxidant. The alkoxylated olefins were thus constructed and applied for the synthesis of alkoxylated N-heterocycles. The polarization of the olefinic carbon-carbon double bond by the electron-donating dialkylthio and electron-withdrawing α-oxo functionalities plays a crucial role in making such C-H alkoxylation reactions to occur under mild conditions. Mechanistic studies implicate a single-electron-transfer (SET) reaction pathway involved in the overall catalytic cycle.
