Vertenex®

Uses in perfumery :

Vertenex® is used in functional fragrance for its stability and substantivity. Used in fougere, marine, fruity notes. Making the link between a fruity or floral note with a woody note.

Year of discovery :

1948

Natural availability :

Vertenex® is not available in its natural state.

Isomerism :

The trans isomer of Vertenex® has a very woody smell, while the cis isomer has a more fruity and floral smell. One of the positional isomers of Vertenex® is Verdox®, with a less woody smell. Citronellyl acetate and Menthanyl acetate are constitutional isomers of Verdox®. Their smell is distinctly different. Although also fruity, they do not have a woody note.

Synthesis precursor :

Vertenex® is not a precursor to the synthesis of another compound of olfactory interest.

Synthesis route :

Vertenex® is synthesized by a first catalytic hydrogenation step of tertbutyl-phenol, at high temperature and pressure. Acetylation of the resulting compound is made by reaction with acetic anhydride and in the presence of an acid catalyst. For the hydrogenation phase, if nickel is used as a catalyst, the trans isomer is predominantly obtained. On the other hand, if the catalysis is made with rhodium, it is the cis isomer which is found in majority at the end of the reaction.

Stability :

Stable in perfumes and diverse functional bases

Other comments :

In comparision to Vertenex®, Verdox® has a more fruity note, reminiscent of apple, before also being woody.

Allergens :

This ingredient does not contain any allergen.

Signal word :

Warning

Hazard pictograms :

Precautionary statements :

IFRA 51^th :

This ingredient is not restricted for the 51th amendment