METHYL JASMONATE

METHYL JASMONATE C화학적 특성, 용도, 생산

개요

Methyl jasmonate has a powerful, floral-herbaceous, sweet, persistent odor. Can be isolated from jasmine oil; or it may be prepared synthetically (probably in the trans-form) from muconic acid via the methyl-3-oxo-cyclopenthyl acetate.

화학적 성질

METHYL JASMONATE is a volatile component of jasmine flower absolute. It is a colorless to pale yellow liquid, bp0.125 kPa 116–118 °C, d20 20 1.022–1.028, n20 D 1.473–1.477, possessing an odor reminiscent of the floral heart of jasmine. Synthesis of the title compound is accomplished by reaction of (2Z)-2-buten-1-yl bromide with Li in the presence of copper-(I) iodide, and the product is treated with a mixture of 2-methylene- and 4-methylene-3-oxocyclopentylacetic acid methyl ester. The aforementioned ester mixture is obtained by reaction of methyl 3-oxocyclopentylacetate with formaldehyde.
An alternative route uses a palladium-catalyzed decarboxylation of the readily available substituted allyl 2-oxocyclopentanecarboxylates, which leads to the corresponding cyclopentenones. Addition of dimethylmalonate, with subsequent saponification/decarboxylation and, if necessary, (Z)-selective hydrogenation, yields methyl jasmonate:
Methyl jasmonate exists in an equilibrium mixture in which the trans-isomer dominates. But of all possible four enantiomeric isomers, chiefly the minor (+)-cis-isomer is responsible for the typical sensory properties of methyl jasmonate. Therefore, several approaches to obtain this material selectively have been developed either by directed syntheses or by enrichment using special isomerization distillation techniques.
Methyl jasmonate is used in fine fragrances where it provides rich, soft effects in jasmine and muguet compositions.

출처

Reportedly identified in jasmine oil (Jasminum grandiflorum L.) and in Tunisian rosemary. Also found in lemon peel oil, peppermint oil and green and fermented tea

용도

Methyl ester in perfumes.

정의

ChEBI: A jasmonate ester that is the methyl ester of jasmonic acid.

상품명

Jasmoneige® (Nippon Zeon), Splendione® (Firmenich)

METHYL JASMONATE 준비 용품 및 원자재

원자재

준비 용품

METHYL JASMONATE 공급 업체

공급자	전화	이메일	국가	제품 수	이점
Hebei Mojin Biotechnology Co., Ltd	+8613288715578	sales@hbmojin.com	China	12468	58
Hebei Yanxi Chemical Co., Ltd.	+8617531190177	peter@yan-xi.com	China	6011	58
Henan Tengmao Chemical Technology Co. LTD	+8615238638457	salesvip2@hntmhg.com	China	415	58
Hebei Kingfiner Technology Development Co.Ltd	+86-15532196582 +86-15373005021	lisa@kingfinertech.com	China	3001	58
Ouhuang Engineering Materials (Hubei) Co., Ltd	+8617702722807	admin@hbouhuang.com	China	3001	58
Hebei Zhuanglai Chemical Trading Co.,Ltd	+8613343047651	admin@zlchemi.com	China	2357	58
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21689	55
career henan chemical co	+86-0371-86658258	sales@coreychem.com	China	29914	58
SHANDONG ZHI SHANG CHEMICAL CO.LTD	+86 18953170293	sales@sdzschem.com	China	2931	58
Hubei Jusheng Technology Co.,Ltd.	18871490254	linda@hubeijusheng.com	CHINA	28180	58

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