Access to Polysubstituted Halophosphorylated Dihydrofurans via Halotrimethylsilane-Promoted Cascade Cyclization of γ-Hydroxyl Ynones with Diphenylphosphine Oxides
作者:Yi-Feng Qiu、Shi-Peng Chen、Jian-He Cao、Shutao Wang、Jin-Hao Li、Ming Li、Zheng-Jun Quan、Xi-Cun Wang、Yong-Min Liang
DOI:10.1021/acs.orglett.2c03323
日期:2022.12.2
of practical polysubstituted halophosphorylated dihydrofuran derivatives. It is noteworthy that halotrimethylsilane functions as a halogenation reagent as well as a promoter to initiate this transformation. In addition, the reaction system can also be scaled up to gram quantities, and the produced halogenated compounds can undergo further derivatizations by Pd-catalyzed coupling reactions.
介绍了 γ-羟基炔酮与二苯基氧化膦的卤代三甲基硅烷 (TMSX) 加速级联卤代磷酸化和环异构化。该方法允许一步合成实用的多取代卤代磷酸化二氢呋喃衍生物。值得注意的是,卤代三甲基硅烷既可作为卤化试剂,又可作为启动该转化的促进剂。此外,反应体系还可以放大到克量级,生成的卤代化合物可以通过钯催化的偶联反应进一步衍生化。