Asymmetric Synthesis of 1,2-Dihydronaphthalene-1-ols via Copper-Catalyzed Intramolecular Reductive Cyclization
作者:Ranjan Kumar Acharyya、Soyoung Kim、Yeji Park、Jung Tae Han、Jaesook Yun
DOI:10.1021/acs.orglett.0c02829
日期:2020.10.16
reductive cyclization of easily accessible benz-tethered 1,3-dienes containing a ketone moiety. This process provided biologically active 1,2-dihydronaphthalene-1-ol derivatives in good yields with excellent enantio- and diastereoselectivity. Mechanistic investigations using density functional theory revealed that (Z)- and (E)-allylcopper intermediates formed in situ from the diene and copper catalyst
我们描述了铜催化分子内的还原性环化的容易获得的含酮基团的1,3-二烯联苯。该方法以良好的产率提供了具有优异的对映和非对映选择性的生物活性1,2-二氢萘-1-醇衍生物。使用密度泛函理论的机理研究表明,由二烯和铜催化剂原位形成的(Z)-和(E)-烯丙基铜中间体会通过六步反应进行异构化并选择性地对主要产物的(E)-烯丙基铜形式进行分子内烯丙基化。成员船状过渡态。通过烯烃部分的反应将所得产物进一步转化为完全饱和的萘-1-醇。