On the Phenyliodine(III)-Bis(trifluoroacetate)-Mediated Olefin Amidohydroxylation Reaction
作者:Imanol Tellitu、Andrea Urrejola、Sonia Serna、Isabel Moreno、M. Teresa Herrero、Esther Domínguez、Raul SanMartin、Arkaitz Correa
DOI:10.1002/ejoc.200600782
日期:2007.1
a C=C double bond is present in the molecule, an intramolecular cyclization process takes place in an exo mode with additional generation of a hydroxy group at the terminal position of the original olefin moiety to render a series of pyrrolidine and piperidine derivatives. In this paper, proofs are offered to conclude that, according to our assumption, an ionic mechanism rather than a radical one must
当适当取代的酰胺在非亲核溶剂(如三氟乙醇)中用 PIFA 处理时,会生成稳定的 N-酰基硝基鎓离子。如果在这种条件下分子中存在 C=C 双键,则分子内环化过程会以外模式发生,并在原始烯烃部分的末端位置额外生成羟基,从而生成一系列吡咯烷和哌啶衍生品。在本文中,提供了证据以得出结论,根据我们的假设,必须考虑离子机制而不是激进机制。此外,使用在酰胺氮上或整个碳链上具有不同取代基的底物对该环化方案的范围进行了研究。(© Wiley-VCH Verlag GmbH & Co. KGaA,69451 Weinheim,德国,2007)