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  • Trimetallic magnesium complexes bearing amine-bis(benzotriazole phenolate) derivatives as bifunctional catalysts for ring-opening polymerization and CO2/epoxide coupling.

Trimetallic magnesium complexes bearing amine-bis(benzotriazole phenolate) derivatives as bifunctional catalysts for ring-opening polymerization and CO2/epoxide coupling.

Chemical communications (Cambridge, England) (2012-08-23)
Chen-Yu Li, Chen-Ruei Wu, Yi-Chang Liu, Bao-Tsan Ko
ABSTRACT

New trimetallic magnesium complexes were synthesized for bifunctional catalysis. Complex catalysed ε-caprolactone polymerizations in not only a 'living' manner but also in an 'immortal' fashion. Additionally, tri-Mg was active for the coupling of CO(2) with cyclohexene oxide (CHO) on addition of n-Bu(4)NBr co-catalysts to give cis-cyclohexene carbonate under mild conditions.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
ε-Caprolactone, 97%
Sigma-Aldrich
Cyclohexene, contains 100 ppm BHT as inhibitor, ≥99.0%
Supelco
Cyclohexene, analytical standard, ≥99.5% (GC)
Sigma-Aldrich
Cyclohexene, inhibitor-free, ReagentPlus®, 99%