Reactive new d8 metal center for oxidative addition reactions

1973 ◽  
Vol 95 (8) ◽  
pp. 2687-2689 ◽  
Author(s):  
James P. Collman ◽  
Donald W. Murphy ◽  
Giuliano. Dolcetti
Keyword(s):  
Oxidative Addition ◽  
Metal Center ◽  
Addition Reactions

Preparation of hydrido(vinyl)iridium(III) complexes from functionalized olefins by C—H activation

2006 ◽  
Vol 84 (2) ◽  
pp. 205-213 ◽  
Author(s):  
Bernd Papenfuhs ◽  
Thomas Dirnberger ◽  
Helmut Werner
Keyword(s):  
Key Words ◽  
Oxidative Addition ◽  
Metal Center ◽  
Addition Reactions ◽  
Phosphine Complexes

The four-coordinate iridium(I) precursor trans-[IrCl(N2)(PPh3)2] (1) reacts with functionalized olefins RCH=C(R′)C(O)R′′ by displacement of the dinitrogen ligand and oxidative addition of the C—H bond to the metal center to give six-coordinate hydrido(vinyl)iridium(III) complexes [IrH(Cl){κ2(C,O)-C(R)=C(R′)C(R′′)=O}(PPh3)2] (2–12) in good to excellent yields. The reaction of [IrH(Cl){κ2(C,O)-CH=CHC(Me)=O}(PPh3)2] (2) with AgClO4 affords the cationic compound [IrH{κ2(C,O)-CH=CHC(Me)=O}(PPh3)2]ClO4 (15), which in solution equilibrates with the uncharged isomers [IrH(OClO3){κ2(C,O)-CH=CHC(Me)=O}(PPh3)2] (15a and 15b). In contrast, five-coordinate [IrH{κ2(C,O)-CH=CHC(Et)=O}(PPh3)2]ClO4 (16), prepared from 3 and AgClO4, is stable and undergoes addition reactions with CO, PPh3, C2H4, CH3C≡CH, MeCN, and PhCN to give the six-coordinate complexes [IrH(L){κ2(C,O)-CH=CHC(Et)=O}(PPh3)2]ClO4 (17–22). The neutral hydrido(thiolato) compound [IrH(SPh){κ2(C,O)-CH=CHC(Et)=O}(PPh3)2] (23) was obtained on treatment of 21 with NaSPh. Key words: iridium, C—H activation, hydrido complexes, vinyl complexes, phosphine complexes.

Some Problems in the Oxidative Addition and Binding of an Ethylene to a Transition Metal Center.

1987 ◽  
Vol 6 (4) ◽  
pp. 902-902
Author(s):  
Jerome Silestre ◽  
Maria Calhorda ◽  
Roald Hoffman ◽  
Page Stoutland ◽  
Robert Bergman
Keyword(s):  
Transition Metal ◽  
Oxidative Addition ◽  
Metal Center

Oxidative addition reactions of an iridium(I) complex containing phosphine-NHC

Polyhedron ◽  
2021 ◽  
Vol 198 ◽  
pp. 115083
Author(s):  
Aziza Ahmida ◽  
Fatin M. Elmagbari ◽  
Hans Egold ◽  
Gerald Henkel
Keyword(s):  
Oxidative Addition ◽  
Addition Reactions

Reactions of the Ni(0) Compound Ni(PPh3)4 with Unactivated Alkyl Halides: Oxidative Addition Reactions Involving Radical Processes and Nickel(I) Intermediates

2018 ◽  
Vol 37 (15) ◽  
pp. 2450-2467 ◽  
Author(s):  
Ryley Kehoe ◽  
Markshun Mahadevan ◽  
Adeela Manzoor ◽  
Gillian McMurray ◽  
Patrick Wienefeld ◽  
...  
Keyword(s):  
Oxidative Addition ◽  
Alkyl Halides ◽  
Addition Reactions ◽  
Radical Processes

SRN1 and oxidative addition reactions of nitroimidazole anions

1986 ◽  
Vol 27 (17) ◽  
pp. 1943-1946 ◽  
Author(s):  
Adelaide T.O.M. Adebayo ◽  
W.Russell Bowman ◽  
W.G. Salt
Keyword(s):  
Oxidative Addition ◽  
Addition Reactions
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