DOI: 10.1002/adsc.202301181 ISSN: 1615-4150
Cyclisation of Alkynyl Alcohols and Carboxylic Acids Mediated by N‐Heterocyclic Carbene Copper(I) Complexes
Chaleena Pimpasri, Xiurong Luo, Shuai Yang, Silvia Díez-González- General Chemistry
The cyclisation of alkynyl alcohols and carboxylic acids in the presence of an [Cu(NHC)<sub>2</sub>]X complex is reported. The reactions were carried out in technical grade toluene in the presence of air with a catalyst that is readily accessible. N‐Heterocyclic carbenes are recognised for stabilising metal centres in a range of oxidation states, and this work further supports that NHCs can also be used as activation sites in air and moisture stable yet active catalysts.