Enantioselective Synthesis of Nicotine via an Iodine-Mediated Hofmann–Löffler Reaction
作者:Estefanía Del Castillo、Kilian Muñiz
DOI:10.1021/acs.orglett.8b03909
日期:2019.2.1
An iodine-mediated Hofmann–Löffler reaction has been developed that enables the first enantioselective synthesis of nicotine based on this synthetic methodology. The effect of the free pyridine core on the involved electrophilic iodine reagents was explored in detail. The final synthesis proceeds under moderate reaction conditions that tolerate the free pyridine core. The same synthetic sequence is
已经开发了碘介导的霍夫曼-洛夫勒反应,该反应使基于这种合成方法的尼古丁的首次对映选择性合成成为可能。详细探讨了游离吡啶核对所涉及的亲电子碘试剂的影响。最终合成在容许游离吡啶核的中等反应条件下进行。相同的合成序列也适用于具有更高取代吡啶核的许多衍生物,包括联吡啶衍生物。