Reductive elimination of [AlH2]+ from a cationic Ga-Al dihydride

2021 ◽  
Author(s):  
Jun Okuda ◽  
Louis J. Morris ◽  
Laurent Maron ◽  
Ambre Carpentier

Oxidative addition of TMEDA-supported [AlH2]+ to [{BDI}Ga] (BDI = {HC(C(CH3)N(2,6-iPr2-C6H3))2) provides [{BDI}Ga(H)-Al(H)(tmeda)]¬[B(C6H3-3,5-Me2)4] (TMEDA = N,N,N’N’-tetramethylethylene¬diamine) with a covalent metal-metal bond. The reaction is readily reversed by substituting TMEDA for an...

1999 ◽  
Vol 38 (11) ◽  
pp. 2624-2631 ◽  
Author(s):  
K. Peter C. Vollhardt ◽  
J. Kevin Cammack ◽  
Adam J. Matzger ◽  
Andreas Bauer ◽  
Kenneth B. Capps ◽  
...  

1992 ◽  
Vol 11 (4) ◽  
pp. 1579-1586 ◽  
Author(s):  
Haiying Yang ◽  
Edward H. Wong ◽  
Jerry P. Jasinski ◽  
Roman Y. Pozdniakov ◽  
Richard Woudenberg

2020 ◽  
Author(s):  
Mark Crimmin ◽  
Richard Y Kong

Aluminum(I) and magnesium(I) compounds are reported for the C–C s-bond activation of strained alkylidene cyclopropanes. These reactions result in the formal addition of the C–C s-bond to main group center either at a single site (Al) or across a metal–metal bond (Mg–Mg). Mechanistic studies suggest that rather than occurring by a concerted oxidative addition, these reactions involve stepwise processes in which substrate binding to the main group metal acts as a precursor to a- or b-alkyl migration steps that break the C–C s-bond. This mechanistic understanding is used to develop the magnesium-catalyzed hydrosilylation of the C–C s-bonds of alkylidene cyclopropanes.


2020 ◽  
Author(s):  
Mark Crimmin ◽  
Richard Y Kong

Aluminum(I) and magnesium(I) compounds are reported for the C–C s-bond activation of strained alkylidene cyclopropanes. These reactions result in the formal addition of the C–C s-bond to main group center either at a single site (Al) or across a metal–metal bond (Mg–Mg). Mechanistic studies suggest that rather than occurring by a concerted oxidative addition, these reactions involve stepwise processes in which substrate binding to the main group metal acts as a precursor to a- or b-alkyl migration steps that break the C–C s-bond. This mechanistic understanding is used to develop the magnesium-catalyzed hydrosilylation of the C–C s-bonds of alkylidene cyclopropanes.


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