Dearomatization-Induced Cycloaddition and Aromatization-Triggered Rearrangement: Synthesis of Vertically Expanded Five-Ring Fused Benzofurans
作者:Dandan Han、Jinjin Chen、Qiuqin He、Renhua Fan
DOI:10.1021/acs.orglett.6b02329
日期:2016.9.16
developed for the efficient construction of vertically expanded five-ring fused benzofurans from ortho-alkynylphenols and ortho-alkynylarylaldimines. The stepwise procedure comprises a dearomatization-induced silver-catalyzed [3 + 2] cycloaddition followed by an aromatization-triggered ytterbium-catalyzed rearrangement.
Ag(I)-Catalyzed Aminofluorination of Alkynes: Efficient Synthesis of 4-Fluoroisoquinolines and 4-Fluoropyrrolo[α]isoquinolines
作者:Tao Xu、Guosheng Liu
DOI:10.1021/ol3026507
日期:2012.11.2
A silver-catalyzedintramolecular oxidative aminofluorination of alkynes has been developed by using NFSI as a fluorinating reagent. This reaction represents an efficient method for the synthesis of various 4-fluoroisoquinolines and 4-fluoropyrrolo[α]isoquinolines.