Beilstein J. Org. Chem.2015,11, 2252–2253, doi:10.3762/bjoc.11.244
-coupling reactions were discovered over a century ago and their development has really blossomed over the past twenty years. Second, copper is an earth-abundant metal, making its use more cost effective and more sustainable than precious transition metal catalysts.
Over 25 contributions from leaders in the
Beilstein J. Org. Chem.2014,10, 1817–1825, doi:10.3762/bjoc.10.191
, nontoxic and earth-abundant metal-based complexes based on aluminum [24] and iron [25] amino-triphenolate complexes. Additionally, salen-based Zn complexes were also found to be rather efficient catalyst for this transformation. More specifically, these systems relate to the Zn(salphen) family of complexes
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Graphical Abstract
Scheme 1:
Catalytic synthesis of organic (poly)carbonates from epoxides and CO2.