Heterocyclic secondary alcohol resolution

Alternatively, they were also found to be good racemization catalysts. Iridium complexes, but also rhodium compounds, catalyzed the racemization step in the enzymatic dynamic kinetic resolution of secondary alcohols, and excellent results were reported for alkyl-aryl as well as dialkyl secondary alcohols. Finally, picolyl and pyridine functionalized N-heterocyclic carbene iridium complexes [(C N)Ir(Cp )Cl]Cl were moderately active catalysts for the polymerization of norbomene in the presence of methylaluminoxane as cocatalyst. ... 

Heterocyclic compounds such as furan, thiophene, and pyrrole are subject to oxidation. Similar to secondary allyUc alcohols, 2-(l-hydroxyalkyl) derivatives of these heterocychc compounds are also good substrates for kinetic resolution using a titanium-tartrate and TBHP system (Scheme 15). 

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