3,7-Dimethylocta-2,6-Dienal → Geraniol nerol

Participants

Reaction Steps

Solid bed catalyst from Example 2 with recycle: 100 ml (41.1 g) of the catalyst were installed in the reactor and activated as per the general prescription. At a hydrogen pressure of 40 bar (24 l/h, s.t.p.), the addition rates were set as follows: citral (2, 60 g/h, purity 98%), methanol +10% TMA (3, 25.5 g/h), return flow (6, 240 g/h). At a reactor temperature of 75° C. and a conversion of 95.61% (reaction time: 713 h), a selectivity for geraniol/nerol of 95.22% was obtained (ratio of Ger/Ner: 1.20). Byproducts: selectivity for citronellol: 1.80%, selectivity for nerol isomers: 1.70%.

Provenance & Evidence