Ligand and solvent-free iron catalyzed oxidative alkynylation of azoles with terminal alkynes
摘要:
A highly efficient and versatile iron catalyzed oxidative alkynylation of azoles with terminal alkynes under ligand and solvent-free conditions is described. (C) 2011 Elsevier Ltd. All rights reserved.
Highly Efficient and Versatile Pd-Catalyzed Direct Alkynylation of Both Azoles and Azolines
作者:Seok Hwan Kim、Sukbok Chang
DOI:10.1021/ol100488v
日期:2010.4.16
A highly efficient and versatile Pd-catalyzed directalkynylation reaction of heterocycles with 1-bromoalkynes was developed. The substrate scope of the reaction was very broad to include not only azoles but also azolines for the first time, thus offering an important advance in the direct functionalization of heterocycles.
Room-Temperature Direct Alkynylation of Arenes with Copper Acetylides
作者:Cédric Theunissen、Gwilherm Evano
DOI:10.1021/ol502030y
日期:2014.9.5
C–H bond in azoles and polyhalogenated arenes can be smoothly activated by copper acetylides to give the corresponding alkynylated (hetero)arenes by simple reaction at room temperature in the presence of phenanthroline and lithium tert-butoxide under an oxygen atmosphere. These stable, unreactive, and readily available polymers act as especially efficient and practical reagents for the introduction