2-Methylundecanal Produkt Beschreibung

2-METHYLUNDECANAL Struktur
110-41-8
  • CAS-Nr.110-41-8
  • Bezeichnung:2-Methylundecanal
  • Englisch Name:2-METHYLUNDECANAL
  • Synonyma:2-Methylundecanal
    MNA;FEMA 2749;FEMA 2794;AldehydeMNA;ALDEHYDE C-12;aldehydem.n.a.;Aldehyde M.N.A.;-Methylundecanal;2-METHYLUNDECANAL;ALDEHYDE C-12 MNA
  • CBNumber:CB3113392
  • Summenformel:C12H24O
  • Molgewicht:184.32
  • MOL-Datei:110-41-8.mol
2-Methylundecanal physikalisch-chemischer Eigenschaften
Sicherheit
  • WGK Germany  :1
  • RTECS-Nr. :YQ1509000

2-METHYLUNDECANAL Chemische Eigenschaften,Einsatz,Produktion Methoden

  • Beschreibung 2-Methylundecanal has a characteristic fatty odor assuming a floral note on dilution. It has an acrid, fatty unpleasant flavor at high levels. At low levels, the flavor is honey- and nut-like. It may be prepared by cracking the corresponding glycidic acid; from α-nonyl acrolein; from methyl nonyl ketone and ethyl monochloroacetate in the presence of sodium ethylate.
  • Chemische Eigenschaften 2-Methylundecanal has a characteristic fatty odor assuming a floral note on dilution. At high levels, it has an acrid, fatty, unpleasant flavor. At low levels, the flavor is honey and nut-like.
  • Chemische Eigenschaften clear colourless to yellowish liquid
  • Occurrence Reported found in kumquat peel oil.
  • Verwenden Perfumery, flavoring.
  • synthetische 2-Methylundecanal is reported as being found in nature. It is a colorless liquid, with an odor markedly different from that of the isomeric dodecanal. It has a fatty odor with incense and ambergris notes.
    2-Methylundecanal is produced by two routes:
    1) 2-Undecanone is converted into its glycidate by reaction with an alkyl chloroacetate. Saponification of the glycidate, followed by decarboxylation, yields 2-methylundecanal.
    2) The second synthesis is based on the conversion of undecanal into 2- methyleneundecanal by reaction with formaldehyde in the presence of catalytic amounts of amines. Hydrogenation of 2-methyleneundecanal yields methylnonylacetaldehyde (MNA). A convenient process starts from 1-decene: hydroformylation gives a mixture consisting mainly of undecanal and 2-methyldecanal. Reaction of the crude product with formaldehyde in the presence of dibutylamine yields a mixture containing over 50% 2-methyleneundecanal. After hydrogenation of the double bond, pure 2-methylundecanal is separated from the by-products by fractional distillation.
    In comparison with other fatty aldehydes, 2-methylundecanal is used in perfumery in rather large amounts to impart conifer notes, particularly fir impressions, but frequently also in fantasy compositions.
  • Taste threshold values Taste characteristics at 2 ppm: waxy, fatty, metallic with a citrus nuance.
  • Sicherheitsprofil Low toxicity by ingestion and skin contact. When heated to decomposition it emits acrid smoke and irritating fumes.
  • Chemical Synthesis By cracking the corresponding glycidic acid; from α-nonyl acrolein; from methyl nonyl ketone and ethyl monochloroacetate in the presence of sodium ethylate
2-METHYLUNDECANAL Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
2-Methylundecanal Anbieter Lieferant Produzent Hersteller Vertrieb Händler.
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110-41-8, 2-METHYLUNDECANAL Verwandte Suche:
  • methyln-nonylaceticaldehyde
  • Methylnonylacetic aldehyde
  • -Methylundecanal
  • Undecanal,2-methyl-
  • 2-methyl n-undecanoic aldehyde
  • 2-METHYLUNDECANAL 94+% FCC
  • Isododecylic aldehyde
  • ALDEHYDE,METHYLNONYLACETIC
  • ALDEHYD C 12 MNA (METHYLUNDECANAL, 2-)
  • 2-METHYLUNDECANAL FCC
  • 2-Methylundecanal,95%
  • MNA
  • 2-METHYLUNDECANAL
  • 2-METHYLUNDECYL ALDEHYDE
  • 2-METHYLHENDECANAL
  • 2-METHYLNONYLACETALDEHYDE
  • ALDEHYDE C-12 MNA
  • ALDEHYDE C-12
  • FEMA 2749
  • FEMA 2794
  • METHYL-N-NONYLACETALDEHYDE
  • METHYL NONYL ACETALDEHYDE
  • 2-Methyl-1-undecanal
  • 2-methyl-undecana
  • Aldehyde M.N.A.
  • aldehydem.n.a.
  • AldehydeMNA
  • Methyl Nonyl Actaldehyde
  • 110-41-8
  • 110418
  • CH3CH29CHCH3CHO
  • CH3CH28CHCH3CHO
  • ALDEHYDE
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