used herein to obtain (Z)-selective anti-Markovnikov vinyl sulfides from the addition of thiyl radicals to terminal alkynes. DFT calculations predicted that S⋯O interaction originated from the delocalization of the lone-pair of the carbonyl oxygen to the adjacent σ* orbital of the S atom of C–S.
Nickel-catalysed chelation-assisted reductive defluorinative sulfenylation of trifluoropropionic acid derivatives
作者:Yu-Qiu Guan、Jia-Fan Qiao、Yu-Feng Liang
DOI:10.1039/d3cc06041a
日期:——
Herein we reported a directing-group assisted strategy for nickel-catalysedreductive defluorinative sulfenylation of trifluoropropionic acid derivatives with disulfides in the presence of Zn, involving triple C–F bond cleavage. This process yielded a diverse array of carbonyl-sulfide di-substituted alkenes in moderate to good yields with good functional group tolerance. Specifically, the reactions
在此,我们报道了一种在 Zn 存在下,镍催化三氟丙酸衍生物与二硫化物还原脱氟磺基化的导向基团辅助策略,涉及三 C-F 键断裂。该过程以中等至良好的产率产生了多种羰基硫二取代烯烃,并具有良好的官能团耐受性。具体来说,该反应表现出高E选择性, E / Z比率高达>99:1。