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Mechanism of Ethylene Hydrogenation by the Molecular Hydrogen Complex [Ir(H) 2 (H 2 )(PMe 2 Ph) 3 ] ⊕ —Characterization of Intermediates
Author(s) -
Lundquist Eric G.,
Huffman John C.,
Folting Kirsten,
Caulton Kenneth G.
Publication year - 1988
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.198811651
Subject(s) - ethylene , catalysis , chemistry , molecule , hydrogen , salt (chemistry) , reactive intermediate , hydrogen molecule , medicinal chemistry , stereochemistry , crystallography , organic chemistry
The use of a coordinated H 2 molecule as leaving group in order to generate an unsaturated reactive complex has proven to be an excellent entry to a new route for ethylene hydrogenation. 1 initially affords the 16e‐complex 2 , which immediately coordinates C 2 H 4 with formation of 3 , the first species of a catalytic cycle. With an excess of C 2 H 4 , the bisethylene complex 4 (as BF 4 ⊖salt) can be isolated as stable end product.