디메톡시톨루엔

한글명:디메톡시톨루엔

카스 번호4179-19-5

상품명:3,5-Dimethoxytoluene

CBNumberCB0230254

분자식C9H12O2

포뮬러 무게152.19

MOL 파일4179-19-5.mol

동의어(한글)

디메톡시톨루엔

3,5-다이메톡시톨루엔

화학적 성질

녹는점	61-62 C
끓는 점	244 °C (lit.)
밀도	1.039 g/mL at 25 °C (lit.)
굴절률	n20/D 1.522(lit.)
인화점	215 °F
저장 조건	Sealed in dry,Room Temperature
용해도	클로로포름(소량으로 용해), 메탄올(소량으로 용해)
물리적 상태	액체
Specific Gravity	1.039
색상	무색~황색으로 투명함
냄새	Warm and sweet, nut-like, earthy-mossy odor
BRN	2043558
LogP	2.897 (est)
CAS 데이터베이스	4179-19-5(CAS DataBase Reference)
NIST	3,5-Dimethoxytoluene(4179-19-5)
EPA	3,5-Dimethoxytoluene (4179-19-5)

위험 및 안전 성명

위험품 표기

위험 카페고리 넘버

36/37/38

안전지침서

26-36

WGK 독일

TSCA

Yes

HS 번호

29093090

NFPA 704:

	1
2		0

그림문자(GHS)

디메톡시톨루엔 화학적 특성, 용도, 생산

화학적 성질
Clear colorless to yellow liquid
용도
3,5-Dimethoxytoluene (DMT) may be used in the synthesis of 3,5-dimethoxybenzoic acid by oxidation and 2-methoxy-6-methyl-1,4-benzoquinone by catalytic oxidation with hydrogen peroxide (H₂O₂)/methyltrioxorhenium (CH₃ReO₃) in dimethyl carbonate (DMC).
용도
3,5-Dimethoxytoluene has been suggested for use in perfume compositions as supporting note for Oakmoss and Vetiver, and as a novel note in Chypre, Fougere and Oriental fragrance types.
생산 방법
3,5-Dimethoxytoluene can be produced from Orcinol in weak aqueous alkali with Dimethylsulfate at controlled temperature.
일반 설명
3,5-Dimethoxytoluene (DMT) is a methoxylated phenolic derivative. It is reported to be one of the main constituent of the floral volatiles in different rose varieties. It has been biosynthesized from orcinol by two successive methylation catalyzed by O-methyltransferases (OMTs). The features of its aerobic oxidation with metal/bromide catalysts have been investigated.
Synthesis
A solution of dry orcinol (14.2 g,0.115 mole) in dry anhydrous acetone(150 ml) containing anhydrous potassium carbonate (45 g) is refluxed withdimethyl sulphate (23.6 ml，31.46 g, 0.25 mole) for 4 hr. The dimethylsulphate is added in small lots of 5 ml. After refluxing, the solution isfiltered and the inorganic residue washed with hot acetone (2 x 25 ml).The combined acetone solution is distilled and the residue macerated withcrushed ice. It is extracted with ether, the ether extract dried (anhydroussodium sulphate) and distilled. Yield 14.2 g (81.6%).B.p.102° (8 mm)

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