Calcium Carbonate → Citronellal

Participants

Reaction Steps

A tubular reactor heatable by means of a salt melt was charged with 10.8 g of a catalyst consisting of 55% by weight of ZnO and 45% by weight of CaCO3 in the calcite modification (determined in each case in the form of the oxides of the calcined catalyst mass). At a temperature of 400° C., a mixture of 46 Nl/h of nitrogen and 3.44 g/h of (R)-citronellol with an enantiomeric excess of 95% ee was passed over the bed. Citronellal was obtained with an enantiomeric excess of (R)-citronellal of 95% ee, the conversion being 50.2% and the selectivity 75.5%.

Provenance & Evidence