Gold catalyzed hydrofluorination of propargyl alcohols promoted by fluorine-hydrogen bonding
作者:Hui Yang、Shaowen Wang、Jie Wang、Xiangsheng Xu、Xiaoqing Li
DOI:10.1039/d3cc02275g
日期:——
The hydroxyl group was discovered to promote gold catalyzed hydrofluorination of alkynes via hydrogen bonding interaction. Based on this strategy, propargyl alcohols could be hydrofluorinated smoothly using Et3N·3HF under acidic additive-free conditions, which provided a straightforward alternative protocol for the synthesis of 3-fluoroallyl alcohols.
A simple method for the conversion of propargyl alcohols to symmetrical 1,5-diynes using low valent titanium reagents
作者:Galla V. Karunakar、Mariappan Periasamy
DOI:10.1016/j.tetlet.2006.03.097
日期:2006.5
Reaction of propargyl alcohols with low valent titanium species, prepared using the TiCl4/Et3N and TiCl4/Zn reagent systems, gives the corresponding symmetrical 1,5-diynes in 56-74% yields. (c) 2006 Elsevier Ltd. All rights reserved.