Ethyl glyoxalate, nrog cov tshuaj noj tshuaj c4h6o3, tseem hu ua Ethyl tsim, muaj ib tug lej ntawm 924-44-7. Nyob rau hauv chav tsev kub thiab siab, Ethyl Glyoxylate muaj nyob rau hauv lub pob tshab tsis muaj xim rau lub teeb daj ua kua, nrog cov txiv hmab txiv ntoo arau thiab qab zib. Soluble nyob rau hauv qee cov kuab tshuaj organic xws li chloroform thiab ethyl acetate, tab sis insoluble hauv dej. Cov qauv molecular muaj aldehyde (cho) thiab ester (COo) pawg. Pawg Aldlhyde tso Ethyl glyoxylate nrog kev ceev nrooj thiab muaj peev xwm koom nrog cov pab cuam tshuam nrog cov yam ntxwv ester. Lub xub ntiag ntawm cov pab pawg ua haujlwm no ua rau cov tshuaj edylate ethinylate los koom nrog ntau yam kev tawm tsam, xws li Diels cov tshuaj tiv thaiv, yam tshuaj tiv thaiv, thiab cov tshuaj tiv thaiv zoo. Cov kev tawm tsam no muaj cov ntawv thov dav hauv cov khoom siv hluav taws xob hauv nruab nrog cev thiab tuaj yeem siv los npaj cov orgecic compounds. Qhov kev sib xyaw no muaj ntau yam kev lag luam hauv ntau qhov kev lag luam, suav nrog kev tshawb fawb tshuaj, kev tshawb fawb biochemical, tshuaj ntsuab tsim, txheej txheem, thiab resin ntau lawm.
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Tshuaj Cov Qauv |
C4H6O3 |
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Muaj pes tsawg leej |
102 |
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Molecular hnyav |
102 |
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m/z |
102 (100.0%), 103 (4.3%) |
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Kev Ntsuam Xyuas |
C, 47.06; H, 5.92; O, 47.01 |
Ethyl glyoxalate, raws li ib qho tseem ceeb organic compound, muaj ntau cov kev siv hauv ntau yam kev lag luam. Nws cov qauv tshuaj tshwj xeeb ua rau nws muaj kev tshawb fawb tseem ceeb rau kev sib txuas ua ke ntau yam li cov duab sib xyaw ua ke, thiab kev tsim cov tshuaj tsw qab, thiab txheej txheem txheej thiab txheej txheem resin.
Daim Ntawv Thov nyob rau hauv Kev Tshawb Fawb Biochemical
Nws tseem tuav txoj haujlwm tseem ceeb hauv Biochemical kev tshawb fawb. Nws tuaj yeem siv los ua cov reagent hauv qee qhov kev tiv thaiv biosynthetic, koom nrog kev tshawb fawb ntau yam kev siv tshuaj lom neeg cov tshuaj tiv thaiv kev muaj sia.
1. Koom nrog hauv cov kev metabolic
Nws tuaj yeem koom nrog hauv cov kab mob metabolic hauv cov kab, xws li lub voj voog glyoxylate. Hauv lub voj voog no, nws tuaj yeem ua raws li cov khoom tseem ceeb hauv nruab nrab, reacting nrog lwm cov sib txuas los tsim lub zog thiab lwm yam tshuaj uas xav tau los ntawm tus kab mob uas xav tau los ntawm kev muaj sia. Los ntawm kev kawm txog lub luag haujlwm ntawm Ethylas hauv cov kev sib tw metabolism hauv medabolism thiab lub zog hloov tshiab ntawm cov muaj sia.
2. Biomarkers
Nws kuj tseem siv tau ua biomarker rau kev kuaj mob thiab kev kho mob. Thaum muaj tshwm sim thiab kev loj hlob ntawm qee yam kab mob, cov ntsiab lus ntawm Ethyl Glyoxylate hauv lub cev yuav hloov. Los ntawm kev kuaj xyuas cov ntsiab lus ntawm Ethylas hauv lub cev, nws tuaj yeem pab cov kws kho mob hauv kev kuaj mob thiab kho cov kab mob. Ib qho ntxiv, nws tseem tuaj yeem ua tus cim rau tshuaj metabolism, siv los kawm cov txheej txheem metabolism, cov txheej txheem ntawm cov tshuaj hauv cov tsiaj muaj sia.
Daim Ntawv Thov ntawm cov txuj lom thiab essence hauv kev tsim khoom
Nws yog dav siv nyob rau hauv daim teb ntawm naj hoom thiab essence manufacturing. Nws tuaj yeem siv rau hauv cov txuj lom qauv hauv cov zaub mov thiab cov tshuaj pleev ib ce kom ntxiv tshwj xeeb aromas thiab flavors, txhim kho cov kev paub ntawm cov khoom.
1. Cov tshuaj ntsuab zaub mov
Hauv kev lag luam khoom noj khoom haus, nws tuaj yeem siv ua cov tsw qab rau hauv kev ua thiab tsim khoom ntawm ntau yam khoom noj. Piv txwv li, nws tuaj yeem siv rau cov khoom ci ci, candies, dej haus, thiab lwm yam khoom, ntxiv rau aroma thiab saj rau cov zaub mov. Los ntawm kev kho cov tshuaj thiab piv ntawm ethebylate, cov khoom noj muaj cov tsw txawv thiab qab tuaj yeem npaj tau raws li cov neeg tau txais kev pab ntau yam.
2. Kom zoo nkauj essence
Hauv kev lag luam tshuaj pleev ib ce, nws tseem siv tau hauv cov khoom lag luam ntawm essence. Nws tuaj yeem ua cov tshuaj tsw qab zib hauv cov tshuaj pleev ib ce, ntxiv cov ar ar and thiab kev pheej ua rau cov khoom lag luam. Los ntawm kev sib txuas ua ke thiab sib xyaw nrog lwm cov tshuaj txuj tsw qab, tshuaj pleev ib ce nrog cov ntxhiab tsw ntxhiab thiab cov qauv tuaj yeem npaj tau cov neeg siv khoom ntawm kev zoo nkauj.
Daim ntawv thov nyob rau hauv kev tsim cov txheej txheem thiab resins
Nws kuj tseem yog lub luag haujlwm tseem ceeb hauv kev tsim cov txheej txheej thiab cov resins. Nws tuaj yeem yog qhov dav siv los ua tus neeg sawv cev hla lossis cov kuab tshuaj, uas pab txhim kho kev ua tau zoo thiab kev ntxhib los mos.
1. Crosslinking Tus Neeg Sawv Cev
Nyob rau hauv cov txheej txheem ntau lawm ntawm cov tsho hlau, nws tuaj yeem siv ua tus neeg sawv cev hla. Los ntawm reacting nrog cov pab pawg ua haujlwm nyob rau hauv lub cob, tus ntoo khaub lig-}} Linked qauv yuav tsim los txhim kho lub hardness thiab hnav tsis kam ntawm txheej. Tus ntoo khaub lig no {{3} Txuas cov qauv tseem tuaj yeem txhim kho cov nplaum thiab huab cua tsis zoo ntawm cov txheej txheem, txuas ntxiv nws lub neej pabcuam.
2. Kuab
Ib qho ntxiv, nws kuj tseem siv tau ua ib qho hnyav rau kev npaj ntawm cov txheej txheem. Nws tuaj yeem tshem tawm resin thiab lwm cov khoom siv xim los ua cov txheej txheem sib dhos sib xyaw. Los ntawm kev siv Ethyl glyoxylate raws li cov kuab tshuaj, lub viscosity ntawm txheej tuaj yeem txo qis, thiab kev ua tau zoo thiab txhuam cov txheej txheem tuaj yeem hloov kho. Meanwhile, esters kuj tseem siv tau ua rau kev ua rau kev kho kom haum thiab viscosity ntawm lub tsho tshaj plaws kom tau raws li cov kev xav tau.
Lwm Cov Ntawv Thov
Ntxiv nrog rau cov teb ua ntej,Ethyl glyoxalatetuaj yeem siv rau ntau yam.
1. Catalyst caber
Nws muaj cov qauv tshwj xeeb thiab cov khoom ntiag tug, thiab tuaj yeem siv ua cov cab kuj catalyst. Los ntawm kev thauj khoom tshwj xeeb catalytic cov khoom siv, catalysts nrog cov kev ua tau zoo ntawm catalytic tau npaj tau. Cov catalyst no muaj kev cia siab rau cov kev cia siab hauv cov tshuaj, thiab tuaj yeem siv los ntsuas cov tshuaj tiv thaiv tshuaj, txhim kho cov tshuaj tiv thaiv kev xaiv, thiab tawm los.
2. Khoom siv hluavtaws hloov kho
Ethyl glyoxylate kuj tseem siv tau raws li kev hloov kho rau cov khoom siv hluavtaws. Los ntawm kev qhia txog cov qauv siv tshuaj, cov khoom siv tshuaj lom neeg thiab cov khoom siv hluavtaws tuaj yeem hloov pauv, txhim kho lawv cov kev ua tau zoo thiab kev ua tiav. Piv txwv, hauv kev ua yas ua, nws tuaj yeem siv ua cov yas ua kom haum thiab ua kev ua tau zoo ntawm plastics; Nyob rau hauv cov roj hmab kev lag luam, nws tuaj yeem siv ua vulcanization tsuj las kom ua nrawm tus txheej txheem roj hmab thiab txhim kho kev ua tau zoo ntawm cov roj hmab vulcanized.
3. Cov ntawv thov hauv kev ntsuas tshuaj aneverical
Nws tseem muaj cov txiaj ntsig hauv kev ntsuas tshuaj. Nws tuaj yeem raug siv ua qhov ntsuas kev ntsuas rau cov tshuaj ntsuam xyuas thiab kev txheeb xyuas zoo ntawm qee cov tshuaj tiv thaiv. Los ntawm kev nthuav tawm cov kev hloov pauv ntawm cov ntsiab lus ntawm Ethylas ua ntej thiab tom qab cov tshuaj tiv thaiv, cov kev tshuaj tiv thaiv thiab tsim cov khoom lag luam tuaj yeem ua tau. Ib qho ntxiv, nws kuj tseem siv tau ua qhov ntsuas kom pom qhov muaj thiab kev xav tau ntawm qee cov ions.
Cov Ntawv Thov Tshwj Xeeb
Nov yog qee cov piv txwv hauv cov ntawv thov tshwj xeeb:
1. Piv txwv ntawm Spice synthesis: synthesis ntawm vanillin
Vanillin yog qhov sib txuas nrog tus aroma muaj zog, siv dav hauv cov zaub mov thiab cov tshuaj pleev ib ce. Nws tuaj yeem raug siv ua ib qho ntawm cov kev cuam tshuam tseem ceeb rau cov synthesis ntawm vanillin. Los ntawm cov tshuaj tiv thaiv tshwj xeeb cov tshuaj, nws tuaj yeem hloov dua siab tshiab ntawm cov tshuaj vanillin, uas tuaj yeem raug cov tshuaj tiv thaiv ntxiv thiab cov theem lim cia kom kawg tau txais cov khoom vanillin. Qhov qauv synthesis muaj qhov zoo ntawm cov txiaj ntsig siab thiab cov khoom lag luam zoo, muab cov khoom lag luam zoo, muab cov khoom siv muaj zog rau cov vanillin loj.
2. Piv txwv ntawm cov txheej txheej ntau lawm: kev npaj dej -} raws cov txheej txheem
Nyob rau hauv cov txheej txheem npaj ntawm dej - Ua cov txheej txheej, nws tuaj yeem siv ua tus neeg sawv cev hla. Los ntawm reacting nrog cov pab pawg ua haujlwm hauv cov cob qhia los ua tus ntoo khaub lig-}} Ua cov txheej txheem tuaj yeem hloov kho. Nyob rau tib lub sijhawm, nws kuj tseem siv tau los ua cov kuab tshuaj kom txo cov dej viscosity ntawm dej - Ua cov txheej txheem thiab ua kom txhuam cov txheej txheem. Los ntawm kev siv nws ua tus neeg sawv cev hla thiab cov kuab tshuaj, dej {{} Raws li cov khoom siv zoo thiab cov ntawv thov tau npaj tau.
3. Piv txwv ntawm Roj Hmab Kev Lag Luam: synthesis ntawm vulcanizents ceev ceev
MBT (2 {{{{{}} mercaptobakothiazole) yog cov siv roj hmab feem ntau, uas yuav tsum tau ua ib qho ntawm cov txheej txheem raw hauv nws cov txheej txheem hluavtaws. Los ntawm cov tshuaj tiv thaiv tshwj xeeb, Ethyl Glyoxylate tuaj yeem hloov mus rau cov tshuaj tiv thaiv ua ntej thiab cov kauj ruam lim dej kom muaj cov khoom siv MBT. Cov qauv synthesis muaj qhov zoo ntawm kev yooj yim ntawm cov ntaub ntawv raw, cov tshuaj tiv thaiv zoo, muab kev txhawb nqa muaj zog rau kev tsim khoom loj ntawm MBT. Meanwhile, MBT ua vulcanization activator muaj kev cia siab thov kev lag luam hauv kev lag luam roj hmab, uasEthyl glyoxalatetuaj yeem txhim kho vulcanization ceev ntawm roj hmab thiab kev ua haujlwm ntawm cov roj hmab vulcanized.
Dynamic Molecular Muaj Cov foos
Ethyl glyoxalate, raws li cov organic yooj yim, muaj cov tshuaj lom neeg sib txawv vim nws cov txheej txheem aldehyde ({} beoet) hauv nws cov qauv molecular. Hauv kev daws, lub xeev ruaj khov, lossis cov qauv molecular, cov kev hloov pauv ntawm cov kev hloov pauv hloov tshiab (xws li qhov ntsuas kub (xws li kub, thiab tus nqi pawj). Cov kev hloov pauv no cuam tshuam rau nws cov kev ua kom zoo thiab kev thov kev ua tau zoo.
Dynamic sib npaug thiab isomerization hauv kev daws teeb meem
Ketol -} Ene Isomerization
Cov pawg alddehyde (c =}}}} h taus {}}}}}}}}}}}}}}}}}}}}}}}} o? Nyob rau hauv polar solvents (xws li Methanol, Acetoniturile), qhov kev faib ua feem ntawm cov ntawv enol nce nrog qhov kub. Piv txwv li, hauv qib 25℃methanol daws, cov ntaub ntawv enol cov ntsiab lus yog kwv yees li ntawm 5%, thaum nws nce mus rau 15% ntawm 80 degree. Qhov no yog qhov cuam tshuam rau kev xaiv cov yeeb yam: cov kev sib txawv ntau dua (xws li reagard reagents)
Kuab tshuaj nyhuv thiab molecular plaus
Nyob rau hauv tsis - polar solvents (xws li Ter Ter Dagers, nrog Aldehyde pawg encapster, txo kev sib cav sib ceg, txo kev ua kom muaj kev cuam tshuam. Nyob rau hauv polar solvents, cov kuab tshuaj molecules tsim cov pawg hydrogen nrog aldehyde pab pawg, nce monomer ua feem. Piv txwv li, hauv 50% Toluene daws teeb meem, kev sib faib ntawm Ethyl acetoacetate hauv Monomer daim ntawv yog tshaj 90%, piav qhia yog vim li cas nws muaj cov kev cuam tshuam zoo hauv Toluene daws.
pH - Cov Tswv Yim Txog Lub Xeev
Nyob rau hauv acidic tej yam kev mob (pH <3), tus Ester Grother Acetoacetate tej zaum yuav dhau los ntawm daim ntawv sau npe (}}}}}}=}}}}}}}}}}}}}} Nyob rau hauv ib tug alkaline tej yam kev mob (Ph> 10), pawg aldehyde tuaj yeem tsim nyog, txhim kho Aldol Aldol Khaub Ncaws Nrog Aldehyde tebchaw.
Molecular conformation thiab siv lead ua rau engineering nyob rau hauv lub xeev ruaj khov
Hydrogen Bond Network hauv cov khoom muaju muaj cov muaju ntawm Ethyl Acetoacetate
Nyob rau hauv cov khoom siv crystal ntawm Ethyl acetoacetate, molecules tsim hydrogen bonds (ua ib pab ·yhode}- ditensional fawm qauv. Qhov no hydrogen bill network txwv txoj kev ywj pheej ntawm cov molecules, ua rau muaj kev ruaj khov hluav taws xob (melting taw tes: 48-50 degree) hauv lub xeev ruaj khov. Txawm li cas los xij, thaum lub crystal yog rhuab los yog raug rau cov khoom siv kho tshuab, thiab cov qauv kev hloov kho kom haum, kev hloov pauv ntawm lub xeev txheej ua ke, ua rau melting lossis sublimation.
Polymorphism thiab Reflectivity
Ethyl acetoacetate muaj nyob rau hauv ob polymorphs (daim ntawv I thiab Daim II), sib txawv hauv cov molecular packing. Hauv daim ntawv kuv, cov lwg me me tau npaj rau hauv ib pawg anti- Configuration, nrog rau cov pab pawg aldehyde, uas ua rau qis dua spatial bond kev sib luag thiab muaj kev pheej hmoo siab; Thaum nyob rau hauv daim Ii, cov lwg me me tau teem rau hauv CIS kev teeb tsa, nrog cov pab pawg aldehyde kaw thiab cov peev txheej nce ntxiv. Los ntawm kev tswj cov mob crystallization (xws li hnyav, ntsuas kub), cov ntaub ntawv sib txawv), yog li tswj hwm nws cov kev cuam tshuam.
Dynamic kev ua kom zoo thiab deactivation hauv catalytic tshuab
Dynamic Callination nyob rau hauv Lewis Acid Catalysis
Nyob rau hauv lub friedel - urehod acetoacetate cov yeeb yam ib qho kev sib txuas lus dynamgen (xws li Optionhgen Group sib koom tes nrog ALLIAN, Txhim kho nws lub electrophilicity thiab txhawb nqa lub alkylation cov tshuaj tiv thaiv nrog cov ntxhiab hydrocarbons. Thaum lub sij hawm cov tshuaj tiv thaiv, kev sib koom ua ke ua ke tsis tu ncua thiab kev sau ntawv kom ua tiav kev ua haujlwm catalyst.
Cov kev qhia ua yeeb yaj kiab hauv Enzymatic catalysis
Hauv cov kev sib cav sib xyaw ua ke, cov txheej txheem aldehyde, aldehyde pab pawg ntawm Ethyl acetoacetate cov ntaub ntawv ib hom dynamic khi nrog hom enzyme (xws li aldolase). Piv txwv li, hauv asymmetric aldol aldol cov kev cuam tshuam, lub enzyme dynamically hloov kho nws lub chaw nquag ua haujlwm los xaiv tus Ethrochemy Esters nrog cov kev txhawb nqa tshwj xeeb nrog lwm tus nqi> 99%). Qhov kev siv khi zoo no yog tus yuam sij rau kev xaiv siab ntawm enzyme catalysis.
Dynamic hloov mus rau lub teeb thiab cov lus teb kub
Yees duab
Los ntawm kev qhia cov pab pawg (xws li azobenzene), Yees duab {{{{}} Cov lus pom zoo ethyl glyroxylate derivatives tuaj yeem tsim. Nyob rau hauv ultraviolet teeb tsis zoo, lub} pab pawg nyob rau hauv cov spatial txoj hauj lwm, ua rau muaj kev hloov pauv ntawm pawg ntawm aldehyde pab pawg thiab muaj kev tswj hwm nws cov kev sib cav. Piv txwv li, Yees duab thev tau tuaj yeem ua kom cov tshuaj tiv thaiv kab mob ua ke ntau dua 10 zaug, muab cov tswv yim tshiab rau cov yees duab- tswj cov tshuaj synthesis.
Thermotropic theem hloov pauv thiab molecular sprangement
Qee cov ethyl glyoxylate derivatives (xws li polyethylglyoxylate) yauv hloov pauv ntawm lub xeev crystalline rau lub amorphous daim. Qhov hloov pauv tau ntawm cov molecular chains nce ntxiv, thiab kev nthuav dav ntawm pawg aldehyde txhim kho, txhim kho cov kev hloov pauv. Qhov no thermosensitivity ua rau nws muaj feem cuam tshuam hauv kev siv tshuaj- tso cov nqa khoom: los ntawm kev tswj hwm qhov kub, cov tshuaj tso tawm Yeeb Tshuaj yuav ua tau kev tswjfwm.
Cim npe nrov: Ethyl glyoxalate CAS 924-44-7, cov neeg muag khoom, chaw tsim khoom, Hoobkas, lag luam, yuav, nqe, loj, rau muag