Meerwein–Ponndorf–Verley reduction of aldehydes formed in situ from α- and β-pinene epoxides in a supercritical fluid in the presence of alumina

The use of a system consisting of flow-type reactor, supercritical fluid containing isopropanol/CO2 and alumina as a catalyst allows the one-pot isomerization of α- and β-pinene epoxides into campholenic aldehyde and myrtanal and Meerwein–Ponndorf–Verley reduction of these aldehydes to the corresponding alcohols.