Penušavi akord
Sparkling accord in perfumery: the fizzy scent of C10 to C12 aldehydes, their citrusy and floral notes, and the clean metallic freshness they bring. In perfumery, an accord is a combination of simultaneous notes forming a whole.
- Type
- Akord
- Olfactive family
- Citrusni
Miris
Detaljno
Zanimljivosti
In one telling, a laboratory assistant mistook a full strength mixture for a ten percent dilution and added a quantity of aldehyde never before used. Another version says Ernest Beaux reinforced the aldehydes by 1% on purpose so that the floral notes would not take over.
Dobijanje i hemija
Način dobijanja
Aldehydes are synthetic molecules named after their carbon chain. Undecanal occurs naturally in citrus oils, but it is produced commercially by hydroformylation of decene. A convenient synthesis of 2-methylundecanal starts with 2-undecanone, which reacts with methylchloroacetate in the presence of the base sodium tert-butoxide to give a glycidyl ester in a Darzens condensation reaction. The ester is hydrolysed by refluxing with alkali, then acidified to the corresponding acid, which decarboxylates on distillation under reduced pressure to form 2-methylundecanal. Dihydromyrcenol can be obtained from citronellene, a pyrolysis product of cis-pinane, via hydroxylation.
No IFRA Standard for the material itself (51st Amendment)
U parfemima
Aldehydic notes pair particularly well with floral notes and with the chypre or woody facet, helping to strengthen the sillage of a perfume. Aldehydes reveal a modernity to the classic notes of a perfume. In one composition, the top note is made of ylang-ylang, neroli and aldehydes with 10 to 12 carbons. Top notes are the scents perceived immediately on application, and they consist of small, light molecules that evaporate quickly. Examples of top notes include mint, lavender and all citrus materials.
Pogledajte i
6 nota