1421759-84-3Relevant academic research and scientific papers
Gold(I)-catalyzed intramolecular [4 + 2] cycloaddition of ortho-(N-tethered 1,6-diynyl)benzaldehydes to 3,4-dihydrobenzo[f]isoquinolin-1(2H)-ones
Zhong, Jiankai,Hu, Rui,Sang, Jingjing,Rao, Weidong
, (2020)
An efficient synthetic method to prepare 3,4-dihydrobenzo[f]isoquinolin-1(2H)-ones through gold(I)-catalyzed intramolecular [4 + 2] benzannulation of o-(N-tethered 1,6-diynyl)benzaldehydes at a low catalyst loading of 2 molpercent is described. The product of 3,4-dihydrobenzo[f]isoquinolin-1(2H)-ones can be easily transformed to benzo[f]isoquinolin-1-ols by simply treating with phenylmagnesium bromide under mild conditions. The structures of compounds 2o and 2w were also ascertained by X-ray crystallographic analysis.
