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Regioselective CH Alkylation of Anisoles with Olefins Catalyzed by Cationic Half‐Sandwich Rare Earth Alkyl Complexes
Author(s) -
Oyamada Juzo,
Hou Zhaomin
Publication year - 2012
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201206233
Subject(s) - regioselectivity , cationic polymerization , alkylation , rare earth , alkyl , catalysis , chemistry , substrate (aquarium) , medicinal chemistry , organic chemistry , mineralogy , oceanography , geology
A half sandwich helping: Cationic rare‐earth alkyl species generated from half‐sandwich rare‐earth dialkyl complexes and [Ph 3 C][B(C 6 F 5 ) 4 ] can serve as unique catalysts for the CH regioselective alkylation of anisoles with alkenes. The reaction affords either ortho ‐monoalkylated derivatives or products substituted at the benzylic position, depending on the substrate chosen.