Olefin Oxyamination with Unfunctionalized
<i>N</i>
‐Alkylanilines
作者:Shuang Gao、Meike Niggemann
DOI:10.1002/adsc.201801407
日期:2019.4
N‐Alkylanilines have rarely been used in oxyamination reactions, due to the normally necessary pre‐functionalization of the N‐atom. Also, the formation of aminium radical cations (ARCs) of anilines bearing alkyl substituents is plagued by the ARC's tendency to instantaneously convert to α‐amino radicals or iminium ions. We present a readily available reagent combination that addresses both challenges
由于通常需要对N原子进行预官能化,因此N烷基苯胺很少用于氧化胺化反应。同样,带有烷基取代基的苯胺的铝自由基阳离子(ARC)的形成也受到ARC立即转化为α-氨基自由基或亚胺离子的趋势的困扰。我们提出了一种既可解决上述两个难题的现成试剂组合,又可通过ARC将N-烷基苯胺进行氧化胺化,作为关键的反应中间体和出色的非对映选择性。