Metal-induced transformations of carbon dioxide. Carbon-carbon bond-forming processes involving anionic Group VIB metal derivatives, and the x-ray structure of [PNP][cis-MeW(CO)4PMe3]

1984 ◽  
Vol 106 (12) ◽  
pp. 3672-3673 ◽  
Author(s):  
Donald J. Darensbourg ◽  
Rebecca Kudaroski
Keyword(s):  
Carbon Dioxide ◽  
Carbon Bond ◽  
X Ray ◽  
Anionic Group ◽  
Bond Forming ◽  
Carbon Carbon Bond ◽  
Metal Derivatives

scholarly journals Cobalt- and rhodium-catalyzed carboxylation using carbon dioxide as the C1 source

2018 ◽  
Vol 14 ◽  
pp. 2435-2460 ◽  
Author(s):  
Tetsuaki Fujihara ◽  
Yasushi Tsuji
Keyword(s):  
Carbon Dioxide ◽  
Aromatic Compounds ◽  
Coupling Reaction ◽  
Cobalt Complexes ◽  
Efficient Catalyst ◽  
Carbon Bond ◽  
Bond Forming ◽  
Carbon Carbon Bond ◽  
Styrene Derivatives ◽  
Reductive Carboxylation

Carbon dioxide (CO2) is one of the most important materials as renewable chemical feedstock. In this review, the Co- and Rh-catalyzed transformation of CO2 via carbon–carbon bond-forming reactions is summarized. Combinations of metals (cobalt or rhodium), substrates, and reducing agents realize efficient carboxylation reactions using CO2. The carboxylation of propargyl acetates and alkenyl triflates using cobalt complexes as well as the cobalt-catalyzed reductive carboxylation of α,β-unsaturated nitriles and carboxyamides in the presence of Et2Zn proceed. A Co complex has been demonstrated to act as an efficient catalyst in the carboxylation of allylic C(sp3)–H bonds. Employing zinc as the reductant, carboxyzincation and the four-component coupling reaction between alkyne, acrylates, CO2, and zinc occur efficiently. Rh complexes also catalyze the carboxylation of arylboronic esters, C(sp2)–H carboxylation of aromatic compounds, and hydrocarboxylation of styrene derivatives. The Rh-catalyzed [2 + 2 + 2] cycloaddition of diynes and CO2 proceeds to afford pyrones.

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