Brønsted Acid-Initiated Formal [1,3]-Rearrangement Dictated by β-Substituted Ene-Aldimines
作者:Chanantida Jongwohan、Yasushi Honda、Toshiyasu Suzuki、Takeshi Fujinami、Kiyohiro Adachi、Norie Momiyama
DOI:10.1021/acs.orglett.9b01533
日期:2019.7.5
ene-aldimines is a useful reaction for affording homoallylic amines. Despite their utilities in synthetic chemistry, the rearrangement for accessing homoallylic amines substituted at the 2-position remains elusive. In this study, the Brønsted acid-initiated formal [1,3]-rearrangement of ene-aldimines was developed to synthesize 2,4,4-substituted homoallylic amines that were otherwise inaccessible previously
烯丙二胺的重排是用于提供均烯丙基胺的有用反应。尽管它们在合成化学中有用,但仍难以获得在2-位取代的均烯丙基胺的重排。在这项研究中,开发了由Brønsted酸引发的烯丙二胺的正式[1,3]重排,以合成2,4,4-取代的均烯丙基胺,而这在以前是无法获得的。我们的研究揭示了一个分子间途径,其中重排通过质子化介导的2-氮杂铝阳离子进行。