New insights into the titanium-mediated enantioselective oxidation of fluorinated aryl benzyl sulfides and aryl phenacyl sulfides
作者:Maria Annunziata M. Capozzi、Vanni Frascaro、Gennaro Pescitelli、Cosimo Cardellicchio
DOI:10.1016/j.tet.2019.03.016
日期:2019.4
enantioenriched sulfoxides. Moreover, in a totally unexpected way, the new protocol was able to overcome another difficulty arose in another field of research, that is the enantioselective oxidation of a fluorinated aryl phenacyl sulfide. Also in this case, the complementarity of behavior is acting. Finally, this investigation gives new support to the attribution of configuration of sulfoxides with ECD
从叔丁基到氢过氧化枯烯的卓有成效的转换能够克服在钛/(S,S)-氢安息香催化剂。新的实验表明了新旧方案的互补性,并明确指出了导致相应的高度对映体富集的亚砜的正确选择。而且,以完全出乎意料的方式,新方案能够克服另一研究领域中出现的另一难题,即氟化芳基苯甲酰硫的对映选择性氧化。同样在这种情况下,行为的互补性正在发挥作用。最后,这项研究为采用ECD技术的亚砜构型的归属提供了新的支持,但前提是必须严格遵守我们过去研究中概述的方案。