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Tetrahydro-4-methyl-2-(2-methylprop-1-enyl)pyran

4-Methyl-2-(2-methyl-1-propenyl)tetrahydropyran (cis- and trans- mixture) Struktur
16409-43-1
CAS-Nr.
16409-43-1
Bezeichnung:
Tetrahydro-4-methyl-2-(2-methylprop-1-enyl)pyran
Englisch Name:
4-Methyl-2-(2-methyl-1-propenyl)tetrahydropyran (cis- and trans- mixture)
Synonyma:
ROSE OXIDE;2H-Pyran, tetrahydro-4-methyl-2-(2-methyl-1-propenyl)-;(Z)-Rose oxide;FEMA 3236;ISOBUTENYL METHYLTETRAHYDROPYRAN;TETRAHYDRO-4-METHYL-2-(2-METHYL-1-PROPENYL)-2H-PYRAN;Rosoxide;rosenoxide;c-rose oxide;ROSE OXIDE RACEMIC
CBNumber:
CB5344138
Summenformel:
C10H18O
Molgewicht:
154.25
MOL-Datei:
16409-43-1.mol

Tetrahydro-4-methyl-2-(2-methylprop-1-enyl)pyran Eigenschaften

Siedepunkt:
86 °C20 mm Hg(lit.)
Dichte
0.873 g/mL at 20 °C(lit.)
Dampfdruck
53Pa at 20℃
FEMA 
3236 | TETRAHYDRO-4-METHYL-2-(2-METHYLPROPEN-1-YL)PYRAN
Brechungsindex
n20/D 1.454
Flammpunkt:
157 °F
storage temp. 
under inert gas (nitrogen or Argon) at 2-8°C
Farbe
A colourless mobile liquid.
Geruch (Odor)
at 1.00 % in dipropylene glycol. green red rose spicy fresh geranium
Geruchsart
floral
Biologische Quelle
synthetic
Optische Rotation
[α]20/D 28±1°, neat
Wasserl?slichkeit
920mg/L at 20℃
JECFA Number
1237
BRN 
1680588
Major Application
flavors and fragrances
Kosmetik-Inhaltsstoffe Funktionen
FRAGRANCE
PERFUMING
InChI
1S/C10H18O/c1-8(2)6-10-7-9(3)4-5-11-10/h6,9-10H,4-5,7H2,1-3H3
InChIKey
CZCBTSFUTPZVKJ-UHFFFAOYSA-N
SMILES
C[C@@H]1CCO[C@H](C1)\C=C(\C)C
LogP
3.3 at 23℃
CAS Datenbank
16409-43-1(CAS DataBase Reference)
EPA chemische Informationen
2H-Pyran, tetrahydro-4-methyl-2-(2-methyl-1-propenyl)- (16409-43-1)
Sicherheit
  • Risiko- und Sicherheitserkl?rung
  • Gefahreninformationscode (GHS)
Kennzeichnung gef?hrlicher Xi
R-S?tze: 38-36/37/38
S-S?tze: 36-26
WGK Germany  3
RTECS-Nr. UQ1470000
10-23
TSCA  TSCA listed
HS Code  29329990
Speicherklasse 10 - Combustible liquids
Hazard Classifications Skin Irrit. 2
Toxizit?t The acute oral LD50 value in rats was reported as 4.3 g/kg (3.7-4.9 g/kg) and the acute dermal LD50 value in rabbits as > 5 g/kg (Moreno, 1973).
Bildanzeige (GHS) Exclamation Mark (GHS07)
Alarmwort Warnung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H315 Verursacht Hautreizungen. Hautreizung Kategorie 2 Warnung P264, P280, P302+P352, P321,P332+P313, P362
Sicherheit
P264 Nach Gebrauch gründlich waschen.
P264 Nach Gebrauch gründlich waschen.
P280 Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.
P302+P352 BEI BERüHRUNG MIT DER HAUT: Mit viel Wasser/... (Hersteller kann, falls zweckm??ig, ein Reinigungsmittel angeben oder, wenn Wasser eindeutig ungeeignet ist, ein alternatives Mittel empfehlen) waschen.
P332+P313 Bei Hautreizung: ?rztlichen Rat einholen/?rztliche Hilfe hinzuziehen.

Tetrahydro-4-methyl-2-(2-methylprop-1-enyl)pyran Chemische Eigenschaften,Einsatz,Produktion Methoden

R-S?tze Betriebsanweisung:

R38:Reizt die Haut.

S-S?tze Betriebsanweisung:

S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.

Chemische Eigenschaften

Rose Oxide occurs in small quantities, mainly as the levorotatory cis form, in essential oils (e.g., Bulgarian rose oil and geranium oil). Commercial synthetic products are either optically active or inactive mixtures of the cis- and trans-isomers. Their sensory properties depend on the starting material and the method of synthesis.They are colorless liquids with a strong odor reminiscent of geranium and rose oil.

Occurrence

Reported found in the oils of rose (Bulgarian) and geranium (Réunion); both the cis- and the trans-form have been reportedly isolated from geranium oil. Unidentified isomers reported found in black currant berries, passion fruit, some types of Thymus and white wine.

synthetische

Rose oxide is usually prepared from citronellol, which can be converted into a mixture of two allyl hydroperoxides by photosensitized oxidationwith singlet oxygen. Reduction of the hydroperoxideswith sodium sulfite yields the corresponding diols . Treatmentwith dilute sulfuric acid results in allylic rearrangement and spontaneous cyclization of one of the isomers; amixture of diastereoisomeric rose oxides is thus formed. The unreacted diol isomer is separated by distillation. ()- Citronellol as the starting material yields an approximately 7 : 3 mixture of ()-cisand ()-trans-rose oxide. Higher proportions of the cis-isomer may be obtained by dehydration with a stronger acid.Other methods for the production of rose oxide starting from citronellol consist of halogenation–dehalogenation reactions of citronellol.
An alternative technical process does not use citronellol but starts from prenal [107-86-8] and 3-methyl-3-buten-1-ol [763-32-6]. Under acidic conditions, the reaction affords a mixture of isomers of dehydro rose oxide (C10H16O6; [1786- 08-9], [92356-05-3], [60857-05-8]). Subsequent hydrogenation using a ruthenium/alumina catalyst leads to rose oxide.The proportion of cis-isomer can be increased by isomerization under acidic conditions.

Tetrahydro-4-methyl-2-(2-methylprop-1-enyl)pyran Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Tetrahydro-4-methyl-2-(2-methylprop-1-enyl)pyran Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

Global( 301)Lieferanten
Firmenname Telefon E-Mail Land Produktkatalog Edge Rate
Hebei Chuanghai Biotechnology Co., Ltd
+8615350571055
Sibel@chuanghaibio.com China 8738 58
Hebei Yanxi Chemical Co., Ltd.
+8618531123677
faithe@yan-xi.com China 5853 58
Hebei Chuanghai Biotechnology Co., Ltd
+8615531151365
mina@chuanghaibio.com China 18126 58
Hebei Zhuanglai Chemical Trading Co.,Ltd
+8613343047651
admin@zlchemi.com China 3692 58
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512
info@tianfuchem.com China 21587 55
career henan chemical co
+86-0371-86658258 +8613203830695
sales@coreychem.com China 29815 58
SHANDONG ZHI SHANG CHEMICAL CO.LTD
+8613065062079
sales@sdzschem.com China 1497 58
Alchem Pharmtech,Inc.
8485655694
sales@alchempharmtech.com United States 63687 58
CONIER CHEM AND PHARMA LIMITED
+8618523575427
sales@conier.com China 49979 58
Hefei TNJ Chemical Industry Co.,Ltd.
+86-0551-65418671 +8618949823763
sales@tnjchem.com China 34563 58

16409-43-1(Tetrahydro-4-methyl-2-(2-methylprop-1-enyl)pyran)Verwandte Suche:


  • 2-(2-methyl-1-propenyl)-4-methyltetrahydro-pyra
  • 2H-Pyran, tetrahydro-4-methyl-2-(2-methylpropenyl)-
  • 4-Methyl-2-(2-methyl-1-propenyl)tetrahydro-2H-pyran
  • Pyran, 2-(2-methyl-1-propenyl)-4-methyltetrahydro-
  • Pyran, tetrahydro-2-(2-methyl-1-propenyl)-4-methyl-
  • Rose oxide , I
  • Rose oxide cis
  • Rose oxide levo
  • tetrahydro-4-methyl-2-(2-methyl-1-propen-1-yl)-2H-Pyran
  • tetrahydro-2-(2-methyl-1-propenyl)-4-methyl-pyra
  • tetrahydro-4-methyl-2-(2-methyl-1-propenyl)-2h-pyra
  • tetrahydro-4-methyl-2-(2-methylpropenyl)-2h-pyra
  • tetrahydro-4-methyl-2-(2-methylpropenyl)-pyra
  • 4-Methyl-2-(2-methyl-1-propenyl)tetrahydropyran (cis- and trans- mixture)
  • 4-Methyl-2-(2-methylprop-1-en-1-yl)
  • tetrahydro-4-methyl-2-(2-methylprop-1-enyl)pyran
  • 4-METHYL-2-(2-METHYLPROPENYL)TETRAHYDRO-2H-PYRAN
  • (4S)-2-(2-METHYL-1-PROPENYL)-4-METHYLTETRAHYDROPYRAN
  • ROSE OXIDE HIGH CIS
  • TETRAHYDRO-4-METHYL-2(2'-METHYL PROPEN-1'-YL)-PYRAN
  • TETRAHYDRO-4-METHYL-2-(2-METHYL-1-PROPEN
  • (-)-ROSE OXIDE, TERPENE STANDARD
  • (-)-ROSE OXIDE, TERPENE STANDARD 99%
  • Tetrahydro-4-methyl-2(2'-methylpropen-1'-yl)pyrane
  • 2-Isobutenyl 4-methyl tetrahydropyran
  • DL-Rose oxide
  • ROSENOXID INAKTIV
  • 4-Methyl-2-(2-methyl-1-propenyl)-tetrahydropyran
  • (+)-Rose oxide, (4S)-2-(2-Methyl-1-propenyl)-4-methyltetrahydropyran
  • 2-(2-Methyl-1-propenyl)-4-methyltetrahydro-2H-pyran
  • Pyran, 2-(2-methyl-1
  • 4-Methyl-2-(2-Methyl-1-propenyl)tetrahydropyran (cis- and trans- Mixture)
  • 2-(2-Methyl-1-Propenyl)-4-Methyltetrahydropyran Rose Oxide
  • 4-Methyl-2-(2-methyl-1-propenyl)tetrahydropyran, 99%, mixture of cis and trans
  • ROSE OXIDE BRI
  • 4-Methyl-2-(2-methyl-1-propenyl)tetrahydropyran ROSE
  • 2H-Pyran, tetrahydro-4-methyl-2-(2-methyl-1-p ropen-1-yl)-
  • 4-Methyl-2-(2-methyl-1-propenyl)tetrahydropyran(cis-andtrans-mixture)>
  • 4-Methyl-2-(2-methyl-1-propenyl)tetrahydropyran USP/EP/BP
  • (4S)-4-methyl-2-(2-methylprop-1-en-1-yl)oxane
  • High Purity Fema 3236 Rose Oxide CAS 16409-43-1 with Best Price
  • TIANFU-CHEM CAS:16409-43-1 FEMA 3236
  • ISOBUTENYL METHYLTETRAHYDROPYRAN
  • ROSE OXIDE RACEMIC
  • TETRAHYDRO-4-METHYL-2-(2-METHYL-1-PROPENYL)-2H-PYRAN
  • 2-(2-methyl-1-propenyl)-4-methyltetrahydro-pyran
  • LEVO-ROSE OXIDE 969651
  • Tetrahydro-4-methyl-2-(2-methyl-1-propenyl)-2H-pyran
  • (?)-Rose oxide
  • 4-Methyl-2-(2-methylprop-1-en-1-yl)tetrahydro-2H-pyran, mixture of cis and trans, ≥98%, stabilized
  • (Z)-Rose oxide
  • 2H-Pyran, tetrahydro-4-methyl-2-(2-methyl-1-propenyl)-
  • c-rose oxide
  • FEMA 3236
  • rosenoxide
  • Rosoxide
  • ROSE OXIDE
  • 16409-43-1
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