Australian Journal of Chemistry p. 1789 - 1790 (1990)
Update date:2022-07-30
Topics:
Pegg, Graham G.
Meehan, George V.
Semihydrogenation of 4-arylbut-2-yn-1-ols in the presence of a quinoline-deactivated palladium catalyst yielded mixtures of (Z)- and (E)-4-arylbut-2-en-1-ols.We find that stereomutation of the initially formed (Z)-alkene product is prevented if biphenyl (10percent of the weight of the alkyne substrate) is included in the reaction mixture.
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