Dr. Xiaoming Jie, Yaping Shang, Peng Hu and Prof. Dr. Weiping Su Palladium-Catalyzed Oxidative Cross-Coupling between Heterocycles and Terminal Alkynes with Low Catalyst Loading Angewandte Chemie International Edition 52
Direct: With [Pd2(dba)3] as a catalyst, the direct alkynylation of thiophenes bearing a variety of substituents has been accomplished by using terminal alkynes as alkynylating reagents. This protocol is also applicable to other electron-rich aromatic heterocycles. dba=dibenzylidenacetone.
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