General Silver-Catalyzed Hydroazidation of Terminal Alkynes by Combining TMS-N<sub>3</sub> and H<sub>2</sub>O: Synthesis of Vinyl Azides
作者:Zhenhua Liu、Peiqiu Liao、Xihe Bi
DOI:10.1021/ol501661k
日期:2014.7.18
A general hydroazidation of unactivated alkynes using silver catalysis is reported. The reactions of diverse terminal alkynes with trimethylsilyl azide (TMS-N3) in the presence of H2O afforded the corresponding vinyl azides in good to excellent yields. This reaction has a broad substrate scope, good functional group tolerance, simple operation, and high reaction efficiency, thus providing an easy access
Direct propargylation of furan and arene by propargylic alcohols promoted by bisoxazoline–ruthenium catalysts
作者:Cédric Fischmeister、Loïc Toupet、Pierre. H. Dixneuf
DOI:10.1039/b501305d
日期:——
The mononuclear [(arene)(bisoxazoline)ruthenium(II)
(NCMe)][(BF4)2] complex 4 characterised by X-ray crystallography is a catalyst precursor for the propargylation of methylfuran and 1,3-dimethoxybenzene directly with propargyl alcohols incorporating terminal or internal alkyne bonds.
单核[(arene)(bisoxazoline)ruthenium(II) (NCMe)][(BF4)2]复合物 4 通过 X 射线晶体学表征,是甲基呋喃和 1,3-二甲氧基苯直接与含有末端或内部炔键的丙炔醇进行丙炔化反应的催化剂前体。