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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;ISOBUTENYL METHYLTETRAHYDROPYRAN;TETRAHYDRO-4-METHYL-2-(2-METHYL-1-PROPENYL)-2H-PYRAN;ROSE OXIDE RACEMIC;Rosoxide;FEMA 3236;rosenoxide;c-rose oxide
CBNumber:
CB5344138
Summenformel:
C10H18O
Molgewicht:
154.25
MOL-Datei:
16409-43-1.mol
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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
Optische Aktivität
[α]20/D 28±1°, neat
Wasserlöslichkeit
920mg/L at 20℃
JECFA Number
1237
BRN 
1680588
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 Sicherheitserklärung
  • Gefahreninformationscode (GHS)
Kennzeichnung gefährlicher Xi
R-Sätze: 38-36/37/38
S-Sätze: 36-26
WGK Germany  3
RTECS-Nr. UQ1470000
F  10-23
HS Code  29329990
Toxizität 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) GHS hazard pictograms
Alarmwort Warnung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H315 Verursacht Hautreizungen. Hautreizung Kategorie 2 Warnung GHS hazard pictogramssrc="/GHS07.jpg" width="20" height="20" /> 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 zweckmäßig, ein Reinigungsmittel angeben oder, wenn Wasser eindeutig ungeeignet ist, ein alternatives Mittel empfehlen) waschen.
P332+P313 Bei Hautreizung: Ärztlichen Rat einholen/ärztliche Hilfe hinzuziehen.

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

R-Sätze Betriebsanweisung:

R38:Reizt die Haut.

S-Sätze 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

3,7-Dimethylnona-1,6-dien-3-ol Isorose oxide Tetrahydro-4-methylen-2-(2-methyl-1-propenyl)-2H-pyran trans-5-Methyl-2-(1-methylvinyl)cyclohexan-1-on Isopulegol Tetrahydro-4-methyl-2H-pyran-2-on Citronellol

Downstream Produkte

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

Global( 278)Lieferanten
Firmenname Telefon E-Mail Land Produktkatalog Edge Rate
Hebei Mojin Biotechnology Co., Ltd 		+8613288715578
 sales@hbmojin.com China 12456 58
Hebei Yanxi Chemical Co., Ltd. 		+8617531190177
 peter@yan-xi.com China 5993 58
Henan Tianfu Chemical Co.,Ltd. 		+86-0371-55170693 +86-19937530512
 info@tianfuchem.com China 21691 55
career henan chemical co 		+86-0371-86658258
sales@coreychem.com China 29914 58
Hebei Guanlang Biotechnology Co., Ltd. 		+86-19930503282
 alice@crovellbio.com China 8823 58
Hubei xin bonus chemical co. LTD 		86-13657291602
linda@hubeijusheng.com CHINA 22968 58
Chongqing Chemdad Co., Ltd 		+86-023-61398051 +8613650506873
 sales@chemdad.com China 39916 58
Alchem Pharmtech,Inc. 		8485655694
sales@alchempharmtech.com United States 63711 58
CONIER CHEM AND PHARMA LIMITED 		+8618523575427
 sales@conier.com China 49390 58
Shaanxi Dideu Medichem Co. Ltd 		+86-29-87569266 15319487004
 1015@dideu.com China 2263 58

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

Tetrahydro-4-methyl-2-(2-methylprop-1-enyl)pyran (2S-cis)-Tetrahydro-4-methyl-2-(2-methyl-1-propenyl)-2H-pyran Tetrahydropyran 12,13-Epoxytrichothec-9-en-3α,4β,15-triol-4,15-diacetat (3 alpha, 4 beta, 8 alpha)-12,13-Epoxytrichothec-9-en-3,4,8,15-tetrol-4,15-diacetat-8-(3-methylbutyrat) Verrucarin A, 7'-Deoxo-7'-(1-hydroxyethyl)-, [7'R(R)]-
  • 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
  • c-rose oxide
  • 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
  • FEMA 3236
  • rosenoxide
  • Rosoxide
  • 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
  • (Z)-Rose oxide
  • 2H-Pyran, tetrahydro-4-methyl-2-(2-methyl-1-propenyl)-
  • ISOBUTENYL METHYLTETRAHYDROPYRAN
  • ROSE OXIDE
  • 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
  • 16409-43-1
  • 16409-43-01
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