Aldehyde C-12 MNA

Other comments :

Aldehyde C-12 MNA is one of the best-performing aldehydes. Its smell is less fruity than the one of Aldehyde C-12 Lauric or Aldehyde C-9 for example.
Used for the first time in 1912, in Quelques fleurs by Houbigant.

Stability :

Aldehydes may form diethylacetals in alcoholic perfumes, with no real impact on their smell

Uses in perfumery :

Aldehyde C-12 MNA is used in citrus notes, in colognes and eaux fraiches in small quantities. Boosts the top note of the formula.

Year of discovery :

Discovered in 1903.

Isomerism :

Aldehyde C-12 MNA is less zesty than Aldehyde C-12 Lauric.

Synthesis precursor :

Aldehyde C-12 MNA forms a Schiff base by reaction with Methyl Anthranilate or Indole for example. It can also be used for condensation with another aldehyde or ketone to form the desired alcene.

Natural availability :

Aldehyde C-12 MNA is not available in its natural state.

Synthesis route :

Aldehyde C-12 MNA (for Methyl Nonyl Acetaldehyde) is synthesized in two different ways. 2-Undecanone reacts with a Chloroacetate to give a glycidate, which can be saponified and decarboxylated to obtain the final product. The second route of synthesis firstly reacts Aldehyde C-11 Undecylenic with formaldehyde in the catalytic presence of an amine, and then a hydrogenation of the intermediate product allows to obtain the Aldehyde C-12 MNA.