supported by the National Natural Science Foundation of China(21878072,21706058,22102062,21725602);the Hunan Provincial Natural Science Foundation of China(2020JJ2011);the China Postdoctoral Science Foundation(2019M662774).
The cross-dimerization of terminal alkynes is the most straightforward and attractive approach to differently substituted 1,3-enynes,which are vital structural motifs in natural products,biologically active compounds,...