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Regioselectivity Control by a Ligand Switch in the Coupling Reaction Involving Allenic/Propargylic Palladium Species
Author(s) -
Ma Shengming,
Wang Guangwei
Publication year - 2003
Publication title -
angewandte chemie
Language(s) - German
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.200351522
Subject(s) - allene , regioselectivity , palladium , chemistry , ligand (biochemistry) , coupling (piping) , coupling reaction , stereochemistry , catalysis , organic chemistry , materials science , receptor , biochemistry , metallurgy
Ein Ligandenwechsel ändert die Regioselektivität der Pd‐katalysierten Kupplung von Propargylmesylaten mit ( Z )‐2‐Ethoxycarbonylethenylzinkiodid oder Phenylzinkbromid: Mit PPh 3 als Ligand werden Alkine gebildet, mit 2‐Diphenylphosphanyl‐2′‐hydroxy‐1,1′‐binaphthalin dagegen Allene.

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