Toroid Probes for High Pressure NMR

Woelk and Bargon have studied the catalytic hydrogenation of alkynes in scCOj [34], using catalysts based on transition metal colloids, carried out in the TCA setup. Under mild experimental conditions (15 bar hydrogen partial pressure, at 323 K) they have found extremely high TOFs (as high as 4 X 10 h  

They have synthesized and applied a new C02-philic chiral rhodium dipho-sphinite complex as catalyst precursor in the asymmetric hydrogenation of di-Me itaconate in SCCO2, SCC2H5 and various organic solvents [35]. Deuterium labelling 

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