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Acrylate‐Assisted Arene–Chromium Bond Cleavage: Generation of a [Cr(CO) 2 ] Fragment under Mild Conditions*
Author(s) -
Kündig E. Peter,
Kondratenko Mikhail,
Romanens Patrick
Publication year - 1998
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/(sici)1521-3773(19981204)37:22<3146::aid-anie3146>3.0.co;2-m
Subject(s) - acrylate , chromium , ligand (biochemistry) , chemistry , methyl acrylate , benzene , cleavage (geology) , bond cleavage , medicinal chemistry , polymer chemistry , organic chemistry , monomer , materials science , polymer , catalysis , receptor , biochemistry , fracture (geology) , composite material
Displacement of the benzene ligand in 1 surprisingly occurs more readily than that of the methyl acrylate ligand. This paves the way for 1 to undergo arene exchange and arene substitution reactions, which may be triggered by a η 2 → η 4 haptotropic rearrangement of the acrylate. Complex 1 is thus a mild precursor of the highly unsaturated fragments [Cr(CO) 2 ] (see scheme) and [Cr(CO) 2 ( η 2 ‐acrylate)].