HFIP-mediated 2-aza-Cope rearrangement: metal-free synthesis of α-substituted homoallylamines at ambient temperature
作者:Karthik Gadde、Bert U. W. Maes、Kourosch Abbaspour Tehrani
DOI:10.1039/d1ob00404b
日期:——
An efficient metal-free strategy for the synthesis of α-substituted homoallylamine derivatives has been developed via a 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP)-promoted 2-aza-Cope rearrangement of aldimines, generated in situ by condensation of aldehydes with easily accessible 1,1-diphenylhomoallylamines. This reaction provides rapid access to α-substituted homoallylamines with excellent functional
通过1,1,1,3,3,3-六氟-2-丙醇 (HFIP) 促进醛亚胺的 2-aza-Cope 重排,开发了一种有效的无金属合成 α-取代的高烯丙胺衍生物的策略,通过醛与容易获得的 1,1-二苯基高烯丙基胺缩合原位生成。该反应提供了快速获得具有优异官能团耐受性和产率的 α-取代高烯丙胺的途径。该反应在室温下进行,产物分离不需要色谱纯化。通过将获得的二苯甲酮酮亚胺转化为N-未保护的高烯丙胺、α-氨基醇和 α-氨基酰胺,进一步证明了当前方法的合成效用。