A Free‐Radical Reduction and Cyclization of Alkyl Halides Mediated by FeCl
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作者:Feba Thomas Pulikottil、Ramadevi Pilli、Vetrivelan Murugesan、Chandu G. Krishnan、Ramesh Rasappan
DOI:10.1002/cctc.201900230
日期:2019.5.20
Iron mediated catalytic reactions are of great interest in the field of organic synthesis because they are economic and naturally abundant. However, the use of iron catalyst in the field of free radical cyclization or reduction of alkyl halides remains limited. Here we describe the use of an unprecedented combination of iron and zinc in the reduction and 5‐exo‐trig radical cyclization of alkyl halides
铁介导的催化反应在有机合成领域中非常受关注,因为它们既经济又天然。然而,在自由基环化或烷基卤化物的还原领域中铁催化剂的使用仍然受到限制。在这里,我们描述了在没有添加配体或添加剂的条件下,在温和条件下使用前所未有的铁和锌结合物对卤代烷进行还原和5 -exo-trig自由基环化的方法。该方法的特点是范围广,官能团耐受性强,并且使用1,4-环己二烯作为氢源,有助于纯化。