Electrochemical [4+2] Annulation‐Rearrangement‐Aromatization of Styrenes: Synthesis of Naphthalene Derivatives
作者:Yueyue Ma、Jufeng Lv、Chengyu Liu、Xiantong Yao、Guoming Yan、Wei Yu、Jinxing Ye
DOI:10.1002/anie.201902315
日期:2019.5.13
We report the first electrochemical strategy to synthesize functionalized naphthalene derivatives through [4+2] annulation—rearrangement–aromatization from styrenes under mild conditions. The electrolysis does not require metals, oxidants and high valence substrates, indicating the atom and step‐economy ideals. The dehydrodimer produced through [4+2] cycloaddition of 4‐methoxy α‐methyl styrene is isolated
Direct Synthesis of Napthalenes by Nickel‐Catalyzed Cascade Cyclization of
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‐Vinyl Chlorobenzenes with Internal Alkynes
作者:Jin Lin、Guanfeng Liang、Chaoyi Wu、Xu Tian
DOI:10.1002/ejoc.202101330
日期:2021.12.28
An IPr-nickel system promotes the arylnickelation of alkyne/Heck cyclization of o-vinyl chlorobenzenes with internalalkynes to access substituted naphthalenes.
Iron-catalysed tandem cross-dehydrogenative coupling (CDC) of terminal allylic C(sp3) to C(sp2) of styrene and benzoannulation in the synthesis of polysubstituted naphthalenes
作者:Hua Liu、Li Cao、Jia Sun、John S. Fossey、Wei-Ping Deng
DOI:10.1039/c2cc17330a
日期:——
A novel iron-catalysed tandem cross-dehydrogenative coupling and benzoannulation process was developed for the synthesis of biologically and synthetically important polysubstituted naphthalene derivatives from simple 1,2-aryl-propenes and styrenes in moderate to good yields.
A novel one-pot benzannulation reaction has been developed for the synthesis of substituted polycyclic aromatic hydrocarbons (PAHs) from the direct coupling of propargylic aldehydes/alcohols with 1,1-diarylethanol through an atom-economical uninterrupted...