Gold-Catalyzed Cyclization of 1,6-Diyne-4-en-3-ols: Stannyl Transfer from 2-Tributylstannylfuran Through Au/Sn Transmetalation
作者:Yifeng Chen、Ming Chen、Yuanhong Liu
DOI:10.1002/anie.201201523
日期:2012.6.18
Gold‐tinted: A gold catalyzed cyclization reaction of 1,6‐diyne‐4‐en‐3‐ols, incorporating an in situ stannyl transfer reaction involving 2‐tributylstannylfuran, gives synthetically valuable 2‐stannylnaphthalenes (see scheme; DCE=dichloroethane). A gem‐diaurated furan complex, was isolated and fully characterized by X‐ray crystallographic analysis, and provides strong evidence for a tin to gold transmetalation
金染色的:1,6-二炔-4-烯-3-醇的金催化环化反应,结合涉及2-三丁基锡烷基呋喃的原位锡烷基转移反应,产生了合成上有价值的2-锡烷基萘(见示意图; DCE =二氯乙烷) 。通过X射线晶体学分析分离出了一种由宝石渗析出的呋喃配合物,并对其进行了全面表征,并为从锡到金的过渡金属化步骤提供了有力的证据。