Synthesis, Inhaltsverzeichnis Synthesis 2022; 54(11): 2687-2695DOI: 10.1055/a-1736-8721 paper Palladium-Catalyzed Semihydrogenation of Alkynes with EtOH: Highly Stereoselective Synthesis of E- and Z-Alkenes Chengniu Wang∗ a Medical School, Institute of Reproductive Medicine, Nantong University, Nantong 226001, Jiangsu, P. R. of China , Jin Dong‡ a Medical School, Institute of Reproductive Medicine, Nantong University, Nantong 226001, Jiangsu, P. R. of China , Tingting Li a Medical School, Institute of Reproductive Medicine, Nantong University, Nantong 226001, Jiangsu, P. R. of China , Xi Zhao a Medical School, Institute of Reproductive Medicine, Nantong University, Nantong 226001, Jiangsu, P. R. of China , Dawei Xu∗ b Department of Orthopaedics, Affiliated Hospital 2 of Nantong University, Nantong 226001, Jiangsu, P. R. of China › Institutsangaben Artikel empfehlen Abstract Artikel einzeln kaufen Alle Artikel dieser Rubrik Abstract A palladium-catalyzed semihydrogenation of alkynes to E- and Z-alkenes employing EtOH as the hydrogenating agent is reported. The selectivity of the reaction system was effectively controlled by ligand/additive and solvent regulation. The use of sodium acetate/triethanolamine (NaOAc/TEOA), THF, and (1R,2R)-bis[(2-methoxyphenyl)phenylphosphino]ethane [(R,R)-DIPAMP] in CH3CN was critical for the stereoselective semihydrogenation of alkynes. The general applicability of this procedure was highlighted by the synthesis of more than 36 alkenes, in good yields with high stereoselectivities. Keywords Keywordssemihydrogenation - alkynes - palladium-catalyzed - highly stereoselective - EtOH as a hydrogen source Volltext Referenzen References 1a Sano S, Matsumoto T, Yano T, Toguchi M, Nakao M. Synlett 2015; 26: 2135 1b Umezawa T, Seino T, Matsuda F. Org. 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