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.

Firmenname	Telefon	E-Mail	Land	Produktkatalog	Edge Rate
Hebei Weibang Biotechnology Co., Ltd	+8615531157085	abby@weibangbio.com	China	8813	58
Hebei Mojin Biotechnology Co., Ltd	+86 13288715578 +8613288715578	sales@hbmojin.com	China	12840	58
Hebei Yanxi Chemical Co., Ltd.	+8617531190177	peter@yan-xi.com	China	5857	58
Hebei Weibang Biotechnology Co., Ltd	+8617732866630	bess@weibangbio.com	China	18154	58
Hebei Kingfiner Technology Development Co.Ltd	+86-15532196582 +86-15373005021	lisa@kingfinertech.com	China	2990	58
Hebei Zhuanglai Chemical Trading Co.,Ltd	+8613343047651	admin@zlchemi.com	China	3002	58
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21634	55
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29884	58
Hubei xin bonus chemical co. LTD	86-13657291602	linda@hubeijusheng.com	CHINA	22963	58
Chongqing Chemdad Co., Ltd	+86-023-6139-8061 +86-86-13650506873	sales@chemdad.com	China	39894	58

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

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• 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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