Polymer supported chromium porphyrin as catalyst for polycarbonate formation in supercritical carbon dioxide.

A new polymer-supported chromium porphyrin has been prepared and fully characterised; its catalytic activity and recyclability were investigated for the ring-opening copolymerisation of 1,2-cyclohexene oxide (CHO) and carbon dioxide (CO2).

Palladium-catalysed cross-coupling reactions in supercritical carbon dioxide.

Heck and Suzuki reactions proceed in good yield in supercritical carbon dioxide in the presence of palladium acetate and tri-tert-butylphosphine with both free and polymer-tethered substrates.