Electronic Effects on the β-Alkyl Migratory Insertion Reaction ofpara-Substituted Styrene Methyl Palladium Complexes

1996 ◽  
Vol 118 (10) ◽  
pp. 2436-2448 ◽  
Author(s):  
Francis C. Rix ◽  
Maurice Brookhart ◽  
Peter S. White
2007 ◽  
Vol 26 (4) ◽  
pp. 783-792 ◽  
Author(s):  
Marilyn V. Rampersad ◽  
Erik Zuidema ◽  
Jan Meine Ernsting ◽  
Piet W. N. M. van Leeuwen ◽  
Marcetta Y. Darensbourg

Author(s):  
Wenlai Han

: Migratory insertion is a fundamental organometallic transformation that enables the functionalization of an unsaturated bond. Recent reports on catalytic hydroamination provide evidence that supports an intermolecular migratory insertion pathway featuring alkene insertion into metal-nitrogen (M-N) bonds. This article presents factors influencing the rate of migratory insertion in late-transition metal-catalyzed hydroamination, including steric and electronic effects from ligands, alkenes, and metal centers, along with stabilization from coordinated amine intermediates and ordered transition states.


1985 ◽  
Vol 63 (11) ◽  
pp. 3019-3026 ◽  
Author(s):  
Brenda M. Louie ◽  
Steven J. Rettig ◽  
Alan Storr ◽  
James Trotter

The syntheses and characterization of a number of square-planar Rh(I) monocarbonyl complexes incorporating un-symmetrical, tridentate, pyrazolylgallate ligands in a meridional coordination mode are described. Oxidative addition reactions of these complexes are detailed and a facile migratory insertion reaction, following the addition of methyl iodide, has resulted in a five-coordinate square-pyramidal Rh(III) acetyl complex. Crystal structures of two compounds are presented, [Me2Gapz(OCH2CH2NH2)]Rh(CO) and [Me2Gapz(OCH2CH2NMe2)]Rh(COMe)I, and confirm the molecular arrangements predicted on the basis of other physical measurements. Crystals of the former are monoclinic, a = 10.212(2), b = 7.8484(5), c = 16.733(2) Å, β = 105.133(6)°, z = 4, space group P21/c; and those of the latter are monoclinic, a = 10.0960(11), b = 11.5352(8), c = 15.871(2) Å, β = 105.764(6)°, z = 4, space group P21/n. Both structures were solved by conventional heavy atom methods and were refined by full-matrix least-square procedures to R = 0.026 and 0.036, respectively, for 2142 and 2941 reflections with I ≥ 3σ(I).


2012 ◽  
Vol 31 (20) ◽  
pp. 7052-7062 ◽  
Author(s):  
Jacob Fernández-Gallardo ◽  
Luca Bellarosa ◽  
Gregori Ujaque ◽  
Agustí Lledós ◽  
María José Ruiz ◽  
...  

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