Georgywood
Редакційна приміткаМи не маємо жодних прав на цей матеріал, його назву чи торговельну марку. Ця стаття глосарію є незалежною редакційною журналістикою й опублікована на підставі свободи вираження поглядів.
Georgywood is a woody fragrance molecule, a component of the Iso E Super mixture, named after Georg Fráter. Its odour type is woody.
- Type
- Складник
- Olfactive family
- Деревні
- Source
- Synthetic
- Chemical class
- Ketone
Запах
Докладно
Цікавий факт
A Lewis-acid cyclisation process makes Georgywood mixtures that contain at least 70%, preferably 85 to 95%, of the isomer β-Georgywood. That proportion is much higher than was previously possible.
Отримання й хімія
Спосіб отримання
Georgywood is produced industrially with, for example, methanol as an additive to enforce isomerisation and suppress premature cyclisation. The isomer β-Georgywood can be prepared by cyclisation of Ψ-Georgywood with a Brønsted acid such as H3PO4. This route also gives the undesirable iso-Georgywood, which cannot be converted to β-Georgywood. Cyclisation of Ψ-Georgywood with more than one molar equivalent of a Lewis acid gives a mixture of β-Georgywood, Georgywood-enolether and γ-Georgywood. Lewis acids such as AlCl3 shift the equilibrium towards Georgywood type products, especially when used in over-stoichiometric amounts.
- Формула
- C₁₆H₂₆O
- CAS
- 185429-83-8
- Зовнішній вигляд
- Colorless liquid
No IFRA Standard for the material itself (51st Amendment)
У парфумерії
Georgywood is commercialized as a fragrance mixture, in which β-Georgywood is the olfactorily most potent isomer.
Див. також
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