Transition-metal-free semihydrogenation of diarylalkynes: highly stereoselective synthesis of trans-alkenes using Na2S·9H2O.
A highly stereoselective and efficient transition-metal-free semihydrogenation of internal alkynes to E-alkenes using cheap and green water as hydrogen donor is described. The reactions are conducted under convenient conditions and provide products in good to excellent yields, with broad substrate scope, including a variety of diarylalkynes.
Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University , Ganzhou 341000, P.R. China.
Zhengwang
Z
Chen
Miaoting
M
Luo
Yuelu
Y
Wen
Guotian
G
Luo
Liangxian
L
Liu
D000475:Alkenes / Q000138:chemical synthesis* / Q000737:chemistry; D000480:Alkynes / Q000737:chemistry*; D002384:Catalysis; D006865:Hydrogenation; D015394:Molecular Structure; D013237:Stereoisomerism; D013440:Sulfides / Q000737:chemistry*; D028561:Transition Elements
D000475:Alkenes; D000480:Alkynes; D013440:Sulfides; D028561:Transition Elements; C033479:sodium sulfide