Water-promoted synthesis of fused bicyclic triazolines and naphthols from oxa(aza)bicyclic alkenes and transformation <i>via</i> a novel ring-opening/rearrangement reaction
作者:Wenkun Chen、Wen Yang、Ruihua Wu、Dingqiao Yang
DOI:10.1039/c7gc03772d
日期:——
An efficient three-component domino reaction among oxa(aza)bicyclic alkenes, sodium azide, and primary haloalkanes is reported, which offers a mild access to 1,2,3-triazolines in an aqueous medium with excellent diastereoselectivities and yields. Further studies show that, water-promoted isomerization of oxa(aza)bicyclic alkenes can afford 1-naphthol derivatives in good yields. Water not only promotes
据报道,在氧杂氮杂双环烯烃,叠氮化钠和伯卤代烷烃之间可以进行有效的三组分多米诺反应,该反应可轻松地在水性介质中获得1,2,3-三唑啉,具有非对映选择性和极佳的收率。进一步的研究表明,氧杂(氮杂)双环烯烃的水促进异构化可以提供高产率的1-萘酚衍生物。水不仅可以促进反应,还可以为所需产品提供可回收和可持续的方法。此外,已经发现了所获得的双环三唑啉的新型无金属级联开环/重排反应以形成多官能化的茚。