Methyl dihydrojasmonate(MD), cov mis mos molecular C13H22O3, CAS 24851-98-7, yog cov xim tsis muaj xim lossis lub teeb daj pob tshab nrog cov tshuaj tsw qab tshiab, uas ua rau nws yog ib qho tseem ceeb hauv kev lag luam naj hoom thiab naj hoom. Nws cov tshuaj tsw qab yog piav raws li kev sib xyaw ntawm jasmine thiab txiv kab ntxwv, maj mam, sov, thiab qab zib. Yuav luag insoluble hauv dej, tab sis yooj yim soluble nyob rau hauv ethanol thiab roj solvents. Cov cuab yeej solubility no ua rau nws yooj yim rau kev sib xyaw nrog lwm cov khoom xyaw hauv cov tshuaj pleev ib ce thiab khoom noj khoom haus, thiab tseem pab txhawb kev sib xyaw thiab ua tiav thaum lub sijhawm tsim khoom. Nws yog qhov nrov tshaj plaws thiab nrov hluavtaws tshuaj tsw qab ntawm perfumers. Nyob rau hauv lub dhau los, nws yog tsuas yog siv nyob rau hauv advanced naj hoom formulations vim tus nqi yog vim li cas, tab sis tam sim no nws yog dav siv nyob rau hauv cov tshuaj pleev ib ce essence formulations. Nws cov khoom siv tshuaj yog qhov ruaj khov, thiab nws muaj qhov zoo ntawm tsis hloov xim. Nws yog feem ntau siv nyob rau hauv lub formulation ntawm jasmine, lily ntawm lub hav, tuberose thiab oriental essence, thiab muaj peev xwm ua kom cov essence tsim elegant thiab tiag tiag paj zoo li tshuaj tsw qab. Siv rau tshuaj pleev ib ce; Nws kuj siv tau rau zaub mov.
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Tshuaj Formula |
C13H22O3 |
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Exact Mass |
226.16 |
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Molecular Luj |
226.32 |
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m/z |
226.16 (100.0%), 227.16 (14.1%) |
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Elemental Analysis |
C, 68.99; H, 9.80; O, 21.21 |
Dihydrojasmonate methyl ester muaj cov nplua nuj qab zib paj aroma, nrog ib tug hint ntawm fruity thiab jasmine floral sau ntawv, thaum blending nrog tshiab thiab mos txiv qaub zoo li txiv hmab txiv ntoo aromas. Nws aroma yog lub teeb, elegant, translucent, nplua nuj, thiab ntev - kav ntev, ua rau nws yog ib qho ntawm cov nyiam cov tshuaj tsw qab los ntawm perfumers. Ntxiv rau,methyl dihydrojasmonateyog insoluble nyob rau hauv dej tab sis soluble nyob rau hauv cov organic solvents xws li ethanol, ua rau nws yooj yim mus sib tov thiab siv nyob rau hauv ntau yam formulations. Raws li ib qho tseem ceeb hluavtaws naj hoom, nws plays lub luag hauj lwm tseem ceeb nyob rau hauv cov naj hoom, essence thiab naj hoom kev lag luam vim nws cov cim jasmine fragrance thiab dav siv.
Daim ntawv thov hauv kev lag luam txuj lom
Hauv kev lag luam txuj lom, dihydrojasmonate methyl ester yog dav siv los muab cov roj jasmine roj thiab lwm cov tshuaj tsw qab paj vim nws cov yam ntxwv aroma thiab tshuaj stability. Nws cov aroma yog tshiab thiab elegant, uas tsis tsuas yog siv los sib tov ib qho txuj lom, tab sis kuj yog ib qho kev txhawb nqa los txhim kho tag nrho cov txuj lom zoo.
Kev npaj ntawm Artificial Jasmine Roj
Dihydrojasmonate methyl ester yog ib qho tseem ceeb raw cov ntaub ntawv rau blending dag jasmine roj. Los ntawm kev ua tib zoo sib piv nrog lwm cov khoom xyaw xws li ionone thiab lily ntawm lub hav aldehyde, lub aroma ntawm ntuj jasmine tuaj yeem simulated, muab siab - zoo thiab qis - nqi khoom siv roj jasmine rau kev lag luam txuj lom.
Ib tus neeg sawv cev sib koom ua ke rau floral fragrances
Thaum sib xyaw cov tshuaj tsw qab, dihydrojasmonate methyl este tuaj yeem siv los ua tus neeg sawv cev sib koom ua ke kom sib npaug ntawm qhov sib txawv ntawm cov tshuaj tsw qab, ua rau tag nrho cov aroma sib haum xeeb thiab sib koom ua ke. Nws aroma yog mos tab sis nplua nuj, uas tuaj yeem txhim kho qhov zoo thiab ntxim nyiam ntawm paj fragrances.
Additives rau zaub mov flavorings
Dihydrojasmonate methyl este tsis tsuas yog siv los npaj cov ntsiab lus, tab sis kuj yog siv los ua ib qho ntxiv ntawm cov khoom noj qab haus huv los txhim kho cov aroma thiab saj ntawm cov zaub mov. Hauv cov khoom noj qab zib xws li khoom qab zib, ncuav qab zib, qhob cij, ncuav mog qab zib, thiab lwm yam, qhov sib ntxiv ntawm methyl dihydrojasmonate tuaj yeem ua rau lub aroma ntawm cov zaub mov muaj zog thiab saj ntau dua.
Kev siv hauv kev lag luam essence
Dihydrojasmonate methyl este kuj tau siv dav hauv kev lag luam essence. Nws tuaj yeem tsis tsuas yog siv los ua ib qho txuj lom xwb, tab sis kuj tseem siv ua ke nrog lwm cov txuj lom los txhim kho thiab kho cov aroma thiab saj ntawm essence.
Cov khoom siv tshuaj tsw qab tseem ceeb ntawm jasmine series essence
Dihydrojasmonate methyl este yog ib qho ntawm cov khoom xyaw tseem ceeb ntawm jasmine series essence. Nws cov ntxhiab tsw nplua nuj thiab kav ntev tuaj yeem ua rau muaj txiaj ntsig zoo nrog cov tshuaj tsw qab jasmine, ua kom muaj txiaj ntsig zoo dua thiab ntuj. Thaum npaj jasmine, lily ntawm lub hav, tuberose thiab lwm yam floral essence, tus nqi ntawm dihydrojasmonate methyl este feem ntau yog ntau tshaj 20%, uas yog ib qho tseem ceeb ntawm cov tshuaj tsw qab raw khoom.
Kev npaj ntawm Oriental essence
Oriental essence yog nto moo rau nws mysterious thiab nplua nuj aroma. Thaum npaj oriental essence, dihydrojasmonate methyl este tuaj yeem siv los ua ib qho ntawm cov khoom siv tshuaj tsw qab, ua ke nrog lwm cov txuj lom (xws li musk, amber, thiab lwm yam) los tsim kom muaj qhov tshwj xeeb oriental tsw.
Synergists rau lwm hom essence
Ntxiv rau jasmine series thiab oriental essence, dihydrojasmonate methyl este kuj siv tau los ua synergist rau lwm hom essence. Thaum muab cov txiv hmab txiv ntoo tsw, nyom tsw thiab lwm yam ntsiab lus, qhov tsim nyog ntxiv ntawm methyl dihydrojasmonate tuaj yeem txhim kho aroma zoo thiab kev nkag siab ntawm hierarchy ntawm essence.
Daim ntawv thov hauv kev lag luam naj hoom
Hauv kev lag luam naj hoom, daim ntawv thov ntawmmethyl dihydrojasmonateyog tseem indispensable. Nws tsis yog tsuas yog ib qho ntawm cov khoom xyaw tseem ceeb ntawm ntau cov naj hoom nto moo, tab sis kuj nyiam los ntawm perfumers vim nws cov ntxhiab tsw ntev thiab ntev ntev.
Cov khoom siv tshuaj tsw qab tseem ceeb ntawm cov naj hoom nto moo
Dihydrojasmonate methyl este yog dav siv nyob rau hauv ntau yam nto moo naj hoom. Piv txwv li, hauv Dior's classic txiv neej naj hoom "Eau Sauvage", methyl dihydrojasmonate yog ib qho ntawm cov khoom xyaw tseem ceeb. Tsis tas li ntawd, methyl dihydrojasmonate kuj pom muaj nyob rau hauv cov txiv neej cov tshuaj tsw qab ntawm "CK Ib", "Invictus" thiab lwm yam hom. Cov naj hoom no tau hlub los ntawm cov neeg siv khoom vim lawv cov ntxhiab tsw tshwj xeeb thiab cov tshuaj tsw qab ntev tuav lub sijhawm.
Cov khoom xyaw tseem ceeb rau kev txhim kho cov naj hoom zoo
Thaum npaj cov tshuaj tsw qab, qhov sib ntxiv ntawm dihydrojasmonate methyl este tuaj yeem txhim kho cov naj hoom zoo. Nws cov ntxhiab tsw nplua nuj thiab kav ntev tuaj yeem tsim cov tshuaj tsw qab nrog cov yam ntxwv aroma thiab kev nkag siab ntawm hierarchy. Nyob rau tib lub sijhawm, qhov sib ntxiv ntawm methyl dihydrojasmonate tuaj yeem ua rau cov tshuaj tsw qab ruaj khov thiab txuas ntxiv nws lub txee lub neej.
Kev npaj ntawm tus kheej naj hoom
Nrog kev xav tau ntawm cov neeg siv khoom ntau ntxiv rau tus kheej naj hoom, perfumers pib sim ua ke dihydrojasmonate methyl este nrog rau lwm cov tshuaj tsw qab muaj tswv yim los tsim cov tshuaj tsw qab tus kheej nrog cov qauv tshwj xeeb. Cov naj hoom no tsis yog tsuas yog muaj cov ntxhiab tsw ntxhiab thiab kav ntev, tab sis kuj tuaj yeem ua tau raws li cov neeg siv khoom xav tau ntawm tus kheej.
Pib los ntawm 2-pentyl-2-cyclopenten-1-one, nws yog condensed nrog diethyl malonate nyob rau hauv qhov kev txiav txim ntawm ib tug catalyst, thiab ces hydrolyzed, decarboxylated, thiab esterified ntawm 160-180℃kom tau.methyl dihydrojasmonate.
Synthesis cov kauj ruam thiab tshuaj sib npaug:
Nyob rau hauv qhov kev txiav txim ntawm ib tug catalyst, 2-pentyl-2-cyclopenten-1-ib tug mus rau ib tug condensation cov tshuaj tiv thaiv nrog diethyl malonate, ua ib tug condensation khoom.
C10H16O+C7H12O4 −>[catalyst] condensation khoom + H2O
Cov tshuaj tiv thaiv no feem ntau yog ua los ntawm cov kuab tshuaj tsim nyog, xws li ethanol lossis ether, txhawm rau txhim kho cov tshuaj tiv thaiv thiab cov khoom purity. Catalysts tuaj yeem ua alkaline, xws li sodium hydroxide lossis sodium ethoxide, los txhawb cov tshuaj tiv thaiv condensation.
Cov khoom condensation undergoes hydrolysis cov tshuaj tiv thaiv ntawm qhov kub ntawm 160-180 degree, decomposing rau hauv cov kua qaub thiab ester tebchaw.
Condensation product+H2O ->[160 ° C txog 80 ° C] hydrolysis khoom 1+hydrolysis khoom 2
Hydrolysis cov tshuaj tiv thaiv yog cov tshuaj tiv thaiv rov qab, yog li nws yog qhov tsim nyog los tswj cov tshuaj tiv thaiv kub thiab lub sijhawm los txhim kho cov txiaj ntsig thiab purity ntawm cov khoom siv hydrolysis.
Hydrolysis khoom 1 (feem ntau yog ib qho acidic compound) undergoes decarboxylation cov tshuaj tiv thaiv nyob rau hauv cov cua kub tej yam kev mob, ua olefin compounds thiab carbon dioxide.
Hydrolysis product 1->[Cov cua kub] olefin compound + CO2
Cov tshuaj tiv thaiv decarboxylation yog kev tshem tawm cov tshuaj tiv thaiv uas tsim cov qauv olefin los ntawm kev tshem tawm hydrogen thiab oxygen atoms ntawm hydroxyl ({0}} OH) thiab carbonyl (C=O) pawg hauv pawg carboxyl (COOH).
Nyob rau hauv qhov kev txiav txim ntawm acidic catalyst, olefin tebchaw raug esterification cov tshuaj tiv thaiv nrog methanol los tsim dihydrojasmonate methyl este thiab dej.
Olefin compound+CH3OH −>[Acidic catalyst] Dihydrojasmonate methyl ester + H2O
Esterification cov tshuaj tiv thaiv yog cov tshuaj tiv thaiv acid catalyzed uas txuas olefin tebchaw nrog methanol los ntawm kev tsim cov ester bonds (COOCH3). Acid catalysts xws li sulfuric acid los yog hydrochloric acid tuaj yeem txhawb cov tshuaj tiv thaiv esterification.
txheej txheem synthesis
Dihydrojasmonate methyl ester, raws li cov khoom sib xyaw ua ke uas ua haujlwm tseem ceeb hauv cov tshuaj tsw qab, tshuaj pleev ib ce, thiab kev lag luam zaub mov, muab ntau yam kev xaiv rau kev tsim khoom vim muaj ntau haiv neeg ntawm nws txoj kev sib txuas. Ntxiv nrog rau cov ncauj lus kom ntxaws saum toj no, muaj ntau txoj hauv kev sib xyaw tseem ceeb, txhua tus uas qhia txog kev sib txawv ntawm cov tshuaj tiv thaiv kab mob thiab cov yam ntxwv ntawm cov txheej txheem.
Synthesis txoj kev raws li 2-pentyl-2-cyclopenten-1-ib
Txoj Kev 1: Cyanaminomethyl formate cov tshuaj tiv thaiv
Lwm txoj kev sib xyaw ua ke siv 2-pentyl-2-cyclopenten-1-ib yam li raw khoom yog los teb nrog methyl cyanamide. Hauv cov tshuaj tiv thaiv no, pawg ketone ntawm 2-pentyl-2-cyclopenten-1-ib tus tau txais cov tshuaj tiv thaiv ntxiv nrog rau pawg cyanide ntawm methyl cyanurate, tsim cov khoom sib txuam nitrile. Tom qab ntawd, pawg nitrile tau hloov mus rau pawg carboxyl los ntawm cov tshuaj tiv thaiv oxidation, tsim cov kua qaub nruab nrab. Thaum kawg, cov kua qaub nruab nrab yog esterified nrog methanol los ntawm cov tshuaj tiv thaiv esterification kom tau txais dihydrojasmonate methyl este. Cov yam ntxwv ntawm txoj kev no yog tias cov kauj ruam cov tshuaj tiv thaiv yog qhov yooj yim, tab sis yuav tsum tau siv cov catalysts tshwj xeeb thiab cov tshuaj tiv thaiv.
Synthesis txoj kev raws li resorcinol
Txoj Kev 2: Cov txheej txheem tshuaj tiv thaiv ntawm cyclohexanedione thiab bromopentane
Txoj kev siv hluavtaws siv resorcinol raws li cov khoom siv raw ua kom pom kev sib txawv ntawm kev sib txawv. Ua ntej, resorcinol tau txais cov tshuaj tiv thaiv catalytic hydrogenation nyob rau hauv qhov kev txiav txim ntawm lub catalyst los tsim cyclohexanone. Tom qab ntawd, cyclohexanedione tau hloov pauv cov tshuaj tiv thaiv nrog bromopentane los tsim 2-pentyl-1,3-cyclohexanedione. Tom ntej no, 2-pentyl-1,3-cyclohexanedione raug oxidation cov tshuaj tiv thaiv nyob rau hauv qhov kev txiav txim ntawm sodium hypochlorite, ua 2-pentyl-2-cyclopentenone. Nyob rau hauv cov kauj ruam no, sodium hypochlorite ua raws li oxidant thiab cyclizer, ua rau reranging thiab cyclization ntawm carbon saw ntawm cyclohexanone. Thaum kawg, ua raws li cov txheej txheem condensation ntawm dimethyl malonate nyob rau hauv txoj kev ib, 2-pentyl-2-cyclopentenone tau condensed, hydrolyzed, decarboxylated, thiab esterified nrog dimethyl malonate kom tau.methyl dihydrojasmonate. Qhov kom zoo dua ntawm txoj kev no yog tias cov khoom siv raw resorcinol muaj ntau qhov chaw, thiab cov txheej txheem tshuaj tiv thaiv cuam tshuam nrog kev hloov kho thiab cyclization ntawm cov saw hlau, muab cov tswv yim tshiab rau kev sib txuas cov molecules complex.
Kev xav txog kev nyab xeeb
Methyl dihydrojasmonate feem ntau suav hais tias muaj kev nyab xeeb rau kev siv hauv cov khoom siv thaum siv ntawm qhov tsim nyog. Txawm li cas los xij, qee qhov kev xav txog kev nyab xeeb suav nrog:
Daim tawv nqaij rhiab heev
Txawm hais tias tsis tshua muaj, qee tus neeg yuav muaj kev khaus khaus lossis ua xua rau MDJ, tshwj xeeb tshaj yog thaum siv cov khoom siv siab lossis cov neeg muaj tawv nqaij. Kev ntsuam xyuas thaj yog pom zoo ua ntej siv cov khoom uas muaj MDJ, tshwj xeeb tshaj yog rau cov neeg uas muaj keeb kwm ntawm kev ua xua ntawm daim tawv nqaij.
Inhalation Toxicity
Thaum MDJ feem ntau yog siv rau hauv cov khoom siv tshuaj pleev ib ce los yog noj, kev nqus pa ntawm MDJ vapor siab, xws li hauv chaw ua hauj lwm lossis thaum lub sij hawm tsim cov khoom tsw qab, yuav ua rau mob ua pa. Kev ua pa kom raug thiab cov cuab yeej tiv thaiv tus kheej yuav tsum tau siv los txo qhov raug.
Environmental Impact
Kev cuam tshuam ib puag ncig ntawm MDJ yog thaj chaw ntawm kev tshawb fawb tsis tu ncua. Raws li ib tug hluavtaws compound, nws persistence thiab bioaccumulation muaj peev xwm nyob rau hauv ib puag ncig tsis to taub tag nrho. Txawm li cas los xij, nws siv los ua biodegradable lwm txoj rau qee cov khoom siv hluavtaws tuaj yeem muab cov txiaj ntsig ib puag ncig.
Cov lus nug nquag
methyl Dihydrojasmonate tsw zoo li cas?
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Methyl dihydrojasmonate yog ib qho ester thiab diffusive aroma compound, nrog cov ntxhiab tswvaguely zoo ib yam li jasmine. Nyob rau hauv racemic sib tov cov tsw yog floral thiab citrus thaum epimerized mixes muaj ib tug ntom fatty floral tsw nrog tsw paub qhov pib ntawm 15 qhov chaw ib billion.
methyl Dihydrojasmonate siv rau dab tsi?
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Methyl dihydrojasmonate, sib tov ntawm cis thiab trans yog dav siv hauv kev tshawb fawb tsom rau:Kev lag luam tshuaj tsw qab: Cov tshuaj no yog cov khoom tseem ceeb hauv perfumery, muab cov ntxhiab tsw qab ntxiag. Nws siv txhim kho cov olfactory profile ntawm ntau yam khoom, ua rau lawv txaus siab rau cov neeg siv khoom.
Methyldihydrojasmonate yog dab tsi?
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Pom muaj nyob rau hauv tshuaj yej, methyldihydrojasmonate yog siv los muab cov khoom fragranceed ib tug mos mos thiab mos dawb floral tsw, reminiscent ntawm jasmine. Tam sim no nyob rau hauv ntau cov naj hoom, colognes, thiab ntau yam khoom siv, cov khoom xyaw no kuj tseem ua lub tsev thaiv rau ntau lwm cov tshuaj tsw qab.
Cim npe nrov: methyl dihydrojasmonate CAS 24851-98-7, lwm tus neeg, manufacturers, hoobkas, lag luam wholesale, yuav, nqe, tej, kev muag khoom