Synthesis of monofluoroalkenes through selective hydrodefluorination of gem-difluoroalkenes with Red-Al®
作者:Jingjing Wu、Juan Xiao、Wenpeng Dai、Song Cao
DOI:10.1039/c5ra04221f
日期:——
A practical approach for the selective hydrodefluorination of gem-difluoroalkenes using Red-Al® as reductant at room temperature in CH2Cl2 was reported. Monofluoroalkenes were obtained in moderate to high yields with good E-selectivity.
Stereospecific synthesis of monofluoroalkenes and their deuterated analogues via Ag-catalyzed decarboxylation
作者:Xinyuan Liu、Fuxing Shi、Chaochao Jin、Binbin Liu、Ming Lei、Jiajing Tan
DOI:10.1016/j.jcat.2022.08.008
日期:2022.9
bioactivity. Although the preparation of aryl and aliphatic fluorides have been extensively investigated, alkenyl fluoride synthesis remains to be under-developed due to challenges associated with stereoselectivity control. Herein, we report a practical method for stereospecificsynthesis of terminal alkenyl fluorides, and especially their deuterated analogues using an Ag-catalyzed decarboxylative protonation/deuteration
氟化有机分子已在药物化学中得到广泛应用,因为氟的掺入通常会改善代谢稳定性、亲脂性和生物活性。尽管芳基和脂肪族氟化物的制备已被广泛研究,但由于与立体选择性控制相关的挑战,烯基氟化物的合成仍有待开发。在此,我们报告了一种使用银催化脱羧质子化/氘化策略立体定向合成末端烯基氟化物的实用方法,尤其是它们的氘代类似物。广泛的底物范围、放大实验和产品衍生化证明了合成效用。DFT 计算将双分子 NMP 与 Ag 的配位识别为有利模式,阐明了机理途径,