Khoom Taw Qhia
Grignard reagents yog etcaseium tebchaw (R-MG-X) siv ntau hauv cov organic kev ua kom cov carbon-carbonal. Cov reagents no muaj kev hloov thiab ntau zaus, feem ntau npaj los ntawm reacting alkyl, lossis arylalium hlau nyob rau hauv ib lub cev hnyav, feem ntau ether. Ether. Lawv ua haujlwm nucleophiles haib hauv ntau cov organic kev hloov pauv, suav nrog kev tsim cov cawv, cov roj carboxylic acids, thiab ntau yam nyuaj orgules. Grignard reagents ua lub luag haujlwm tseem ceeb hauv kev lag luam tshuaj synthesis, muab kev tshawb nrhiav lub tsev tseem ceeb rau kev tsim cov txheej txheem molecular.
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O-Tolylmagnesium Chloride 丨 CAS 33872-80-9Catalog No.: SS136645 NrNtau
CAS Nr .: 33872-80-9
Cov ntsiab lus: 1.26-1.54M
Khoom npe: o-Tolylmagnesium chloride
Cov mis mos molecular: C7H7ClMg
Molecular Luj: 150.89
Synonym (s): 2-methylphenylmagnesium chloride -
Isopropenylmagnesium Bromide CAS 13291-18-4Catalog No.: SS136513 NrNtau
CAS Nr .: 13291-18-4
Concentration: 0.95-1.0M hauv THF
Khoom npe: Isopropenylmagnesium bromide
Cov mis mos molecular: C3H5BrMg
Molecular Luj: 145.28 -
3 -N,N-Dimethylaminopropylmagnesium Chloride 丨 CAS 154034...-Nr.: SS132746Ntau
CAS Nr .: 154034-91-0
Titration -: 0.90 ~ 1.10M
Khoom npe: 3-N, N-Dimethylaminopropylmagnesium Chloride
Cov mis mos molecular: C5H11ClMgN
Molecular Luj: 144.91 -
Propylmagnesium Chloride CAS 2234-82-4Catalog No.: SS122637 NrNtau
CAS Nr .: 2234-82-4
1.0 M hauv 2-methyltetrahydrofuran & 2.0 M tov hauv diethyl ether
Khoom npe: Propylmagnesium chloride
Cov mis mos molecular: C3H7ClMg
Molecular Luj: 102.85
Synonym (s):... -
3,5-difluorophenyfmnesium bromide 丨 CAS 62351-47-7Catalog tsis muaj.: SS094174Ntau
CAS TSIS MUAJ.: 62351-47-7
Purity (magnesium cov ntsiab lus): 99% min
Khoom npe: 3,5-difluorophenylmagnesium bromide
Molecular cov mis: C6h3brf2mg
Molecular hnyav: 217.29 -
Magnesium methyl carbonate 丨 CAS 4861-79-4Catalog tsis muaj.: SS132704Ntau
CAS TSIS MUAJ.: 4861-79-4
Lub tsev pheeb suab los ntawm Edta: 1.8-2.2m
Khoom npe: Magnesium methyl carbonate
Molecular Cov Qauv: C3h6Mgo4
Molecular hnyav: 130.38
Txhais lus (cov): magnesium... -
Diethylalzinc 丨 CAS 557-20-0Catalog tsis muaj.: SS029767Ntau
CAS TSIS MUAJ .: 557-20-0
Assis: 1.0 hli nyob rau hauv hexane kev daws teeb meem
Khoom npe: Diethylzinc
Molecular cov mis: c4h10zn
Molecular hnyav: 123.51
Txhais lus (s): Diethylzinc daws -
Metylmagnesium Chloride 丨 CASE 676-58-4Catalog tsis muaj .: SS127662Ntau
CAS TSIS MUAJ .: 676-58-4
Concentration (lub hnub): 2.80m-3.30m nyob rau hauv thf
Khoom npe: methylmagnesium chloride
Molecular cov mis: CH3CLMG
Molecular hnyav: 74.79
Cov (cov):... -
Lithium Tsiv Puas yog 7782-89-0Catalog Tsis yog.: SS118556Ntau
Cas Tsis Yog .: 7782-89-0
Assay: 95% min.
Khoom npe: Lithium sawv
Molecular Cov Mis: Linh2
Molecular hnyav: 22.96
Txhais (s): lithamide -
Ephynylmagnesium bromide 丨 CAS 4301-14-8Catalog tsis muaj.: SS131963Ntau
CAS TSIS MUAJ.:: 4301-14-8
Concentration: 0.45m-0.60m
Khoom npe: Ethynynlmagnesium bromide
Molecular cov mis: c2hbrmg
Molecular hnyav: 129.24
Cov Lus Txhais: Bromo (Ethynyoog) magnesium -
Vinylmagnesium bromide 丨 Cas 1826-67-1Catalog tsis muaj.: SS131943Ntau
CAS TSIS MUAJ .: 1826-67-1
Concentration: 0.95m-1.10m
Khoom npe: Vinylmagnesium bromide
Molecular Cov Qauv: C2H3BRMG
Molecular hnyav: 131.25
Txhais lus (s): Bromovinylmagnesium -
Cyclopropylmagnesium Bromide are Cas 23719-80-4Catalog Tsis yog.: SS121846Ntau
CAS TSIS MUAJ .: 23719-80-4
Cov ntsiab lus: 0.5Mol hauv Thf
Khoom npe: Cyclopropylmagnesium bromide
Molecular cov mis: c3h5brmm
Molecular hnyav: 145.28
Txhais lus (S): Bromocyclopropalis
Cov khoom lag luam zoo thiab cov yam ntxwv
Ntau haiv neeg Reventivity
Grignard reagents tuaj yeem hnov mob nrog ntau yam ntawm carrophiles, suav nrog carbonyyl cov tebchaw, esters, thiab epoxides, ua rau muaj kev sib xyaw ua ke hauv cov organic.
Carbon-Carbon Ballation Tsim
Thawj qhov txiaj ntsig ntawm grignard reagents yog lawv lub peev xwm ua kom muaj zog carbon-carbon basing, ua rau lawv indispensable nyob rau hauv synthesis ntawm cov txheej txheem molecules.
Tau sib kho
Los ntawm kev hloov cov organic halide (RX) siv hauv cov tshuaj tiv thaiv, cov tshuaj tua kab ua kom haum cov ntawv thov, muab cov khoom siv tshwj xeeb hauv cov organic synthesis.
Kev haus dej haus ntau heev
Grignard reagents yog ua tau zoo nyob rau hauv hloov aldehydes thiab ketones rau theem pib, lossis cov neeg muaj peev xwm tseem ceeb hauv chaw muag tshuaj thiab muaj cov tshuaj chemical.
Nqi-Zoo
Magnesium, cov tub ntxhais sib xyaw ntawm grampard reagents, yog cov pheej yig thiab npaj tau, ua cov tshuaj tiv thaiv no zoo.
Thoob Plaws Kev Siv
Grignard reagents yog siv nyob rau hauv cov txheej txheem loj-teev kev lag luam, suav nrog kev tsim khoom ntawm cov tshuaj, agnaphics, thiab zoo tshuaj lom neeg.
Khoom Yam
Alkyl Grignard Reagents
Cov reagents no muaj ib pab pawg alkyl (r) sib raug zoo rau cov hlau nplaum (R-MG-X). Alkyl grignard reagents yog dav siv nyob rau hauv nucleophilic ntxiv cov kev tiv thaiv thiab cov txheej txheem alkylation hauv synthic synthesis.
Aryl Grignard Reagents
Aryl Grignard Reagents muaj cov pab pawg uas muaj cov neeg muaj tswv yim (AR-MG-X). Cov tshuaj reagents no yog qhov tseem ceeb rau kev sib sau cov tshuaj tsw qab uas muaj ntxhiab tsw ntxhiab thiab qhia cov pab pawg aryl rau hauv hom phiaj molecules.
Vinyl Grignard Reagents
Vinyl grignard reagents feagents tshwj xeeb pab pawg vinyl (ch}}
Ua hauj lwm muaj grignard reagents
Cov tshuaj reagents muaj cov pab pawg ua haujlwm ntxiv, xws li esters, ketriles, lossis nitriles, tso cai rau kev sib txuas ntau dua thiab cov cuab yeej ntawm kev sib txuas ua ke.
Heterocyclic grignard reagents
Cov reagents no sib xyaw ua ke, xws li pyridines lossis thiophenes, nthuav tawm cov kev siv ntawm grignardations kom suav ntau ntau haiv neeg thiab biologically cuam tshuam cov qauv.
Daim ntawv thov ntawm cov khoom
Synthesis ntawm dej cawv:Grignard reagents yog siv los hloov cov carbonyl sib txuas (aldehydes thiab ketones, ib kauj ruam tseem ceeb hauv kev tsim cov tshuaj paus, cov tshuaj tsw qab, thiab tshuaj nplua.
Kws Kev Lag Luam:Cov kev hloov pauv tau ua haujlwm nyob rau hauv synthesis ntawm nquag tshuaj tshuaj xyaw (APIs), tshwj xeeb hauv kev tsim kho ntawm cov organic molecules siv hauv kev tsim tshuaj.
Agnochnicals:Grignard reagents yog siv los tsim cov tshuaj herbicides, fungicides, thiab cov tshuaj tua kab los ntawm kev tsim cov ntawv tseem ceeb hauv agnochemical lwg me me.
Polymer Kev Lag Luam:Vinyl grignard reagents yog siv nyob rau hauv cov txheej txheem polymerization, pab txhawb rau kev tsim ntau polymers thiab plastics.
Kev Tshawb Fawb:Cov kev hloov pauv tau siv nyob rau hauv cov synthesis ntawm cov khoom siv tshiab uas muaj cov tshuaj tshwj xeeb thiab tshuaj lom neeg, suav nrog cov txheej txheem siab, cov nplaum, thiab cov resins.
Cov Khoom Ntuj Khoom Synthesis:Grignard reagents ua lub luag haujlwm tseem ceeb ntawm cov khoom siv ntuj, yooj yim ntawm kev tsim kho cov txheej txheem nyuaj hauv qhov.
Catalysis:Tej zaum cov khoom siv uas ua rau muaj qee zaus siv rau hauv catalytic mus los mus pab lossis txhim kho kev hloov roj hauv kev lag luam thiab kev kawm txuj ci.
Cov khoom siv ntawm cov khoom
Magnesium yog qhov tseem ceeb uas cuam tshuam nrog cov organic ntau yam los ua cov grignard reagent. Lub purity thiab daim ntawv ntawm magnesium (tig, ribbons) yog qhov tseem ceeb rau cov tshuaj tiv thaiv kev ua tiav.
Cov organic halide pab ua cov pa roj carbon rau hauv grignard reagents, nrog alkyl, aryl, thiab vinylal, thiab ntau hom siv.
Cov neeg muaj kev pab xws li diethyl ether lossis tetrahydrofuran (THF) tau siv los ua cov kuab tshuaj rau grignents rau grignard refunultural. Lawv txoj kev sib koom tes nrog lub chaw tso hluav taws xob magnesium tso rau cov grignard reagent thiab txhim kho kom ntseeg tau.
Aldehydes, ketones, esters, thiab carboxylic acids yog thawj lub chaw hauv hluav taws xob uas muaj cawv, ketones, thiab lwm yam sib xyaw ua ke.
Tej yam txawv txav tuaj yeem xav tau catalysts los txhim kho cov tshuaj tiv thaiv thiab cov qoob loo, tshwj xeeb hauv cov txheej txheem kev lag luam.
Txheej txheem ntau lawm lossis cov txheej txheem
Qhov kev npaj ntawm grignard reagents yuav tsum tau ua kom yog thiab tswj tau vim lawv rhiab heev rau noo noo thiab huab cua. Cov txheej txheem pib los ntawm kev ua tib zoo npaj magnesium hlau thiab cov organic halide hauv qhov chaw qhuav, hauv nitrogen lossis argon). Muaj ib qho kev kub ntxhov ib txwm muaj xws li ether yog ntxiv rau qhov tsis muaj dej nyob, raws li tseem muaj cov dej noo tuaj yeem ua rau cov grignivate lub grignard reagent. Cov tshuaj tiv thaiv yog pib los ntawm kev ntxiv cov halide rau cov magnesium, uas tsim cov ocegomagnesium compound. Nruam kev saib xyuas ntawm cov tshuaj tiv thaiv yog qhov tseem ceeb los tswj qhov tseeb stoichiometry thiab zam dhau kev phiv.
Cheebtsam ntawm cov khoom
Magnesium (MG):Magnesium pabcuam ua lub nruab nrab hlau Atom, koom tes nrog cov pab pawg organic thiab cov halide ua kom cov grampard reagent.
Organic pawg (r):Cov pab pawg organic (Alkyl, lossis Vinyl) txuas nrog Magnesium txiav txim siab cov Assivity thiab xaiv tau ntawm grignard reagent.
Halide (x):Cov khoom lag luam zoo siv hauv grignard reagents suav nrog bromides, thiab iodides ua qhov kev siv ntau tshaj plaws vim lawv txoj kev zoo tshaj plaws.
Kuab Molecules:Ither molecules koom tes nrog cov chaw magnesium, ruaj khov lub grignard reagent thiab txhawb cov tshuaj tiv thaiv nrog electrophiles.
Electrophile:Lub hom phiaj molecule, xws li carbonyl compound, ua hauj lwm ua lub tshuab hluav taws xob uas cuam tshuam nrog lub grignard reagent los ua cov khoom xav tau.
Kev Txij Nkawm thiab Kev Ceev Faj
Chaw ntim khoom
Grignard reagents yog reactive thiab rhiab rau noo noo thiab huab cua. Lawv yuav tsum tau muab khaws cia rau hauv cov thawv kaw ntom ntom, zoo dua nyob rau hauv cov chaw inert, kom tiv thaiv kev lom zem.
Fandling ceev faj
Nco ntsoov coj grignard reagents nyob rau hauv ib puag ncig qhuav, inert ib puag ncig kom tsis txhob muaj kev cuam tshuam rau cov dej noo, uas tuaj yeem ua rau cov pahrolysis thiab deactivate lub reagent.
Kev mob tsis muaj mob
Nco ntsoov tias txhua cov kuab tshuaj thiab reagents siv nyob rau hauv cov tshuaj tiv thaiv tau qhuav thiab cov cuab yeej siv tau tiv thaiv kev tsis txaus siab sab nraud.
Tswj Qhov Kub
Qee qhov grignard tau muab exothermic expletmic, xav kom ceev faj qhov kub tswj kom tiv thaiv kev khiav tawm lossis kev txwv tsis pub cov khoom.
Nkim pov tseg
Muab cov kev cai tswj hwm cov grignents thiab cov kev tswj hwm kev nyab xeeb hauv nroog thiab kev nyab xeeb rau kev nyab xeeb rau kev noj qab haus huv thiab ib puag ncig.
Tuam txhab ua hauj lwm zoo
Peb tsom kwm ntawm kev ua tau zoo & Cov Neeg Siv Khoom
Peb muab kev pab kom xa cov khoom lag luam zoo thiab kev pabcuam cov neeg siv khoom tshwj xeeb tshaj qhov kev cia siab.
Ntau Yam Khoom Ntau
Catalop ntawm tshaj 27, {000 Cov tshuaj rau kev lag luam ntau yam, muab ob qho kev daws teeb meem tshwj xeeb.
Kev lag luam kev lag luam muaj zog
Peb pab neeg uas muaj ntau yam uas muaj cov kev taw qhia, nyob tam sim no nrog txoj kev lag luam qauv kom xa cov tshuaj lom neeg zoo rau koj cov kev xav tau.
Kev sib tw nqi & kev ntseeg tau
Kev sib tw nqi thiab txhim khu kev qha kom ua kom muaj txiaj ntsig zoo, ua tau zoo cov saw hlau tsis muaj kev sib cuam tshuam zoo.
Yuav ua li cas sib koom ua ke nrog peb
Kev sib koom tes nrog leapchem muab rau koj nkag mus rau cov kev tshaj lij ntawm cov tuam txhab ua nrog 18 xyoo kev paub hauv kev lag luam tshuaj. Peb muab tshaj 27, {{{2} Cov tshuaj estical tshuaj uas raug txiav kom tau sib ntsib ntau yam sib txawv. Tag nrho peb cov khoom ua raws li cov qauv kev lag luam thiab muaj nrog cov ntawv pov thawj tsim nyog.
Peb koom tes nrog ntau yam ntawm cov neeg koom tes, suav nrog:
• Kev Tshawb Nrhiav Chaw soj ntsuam
• Cov tuam txhab ua lag luam
• Cov Tshuaj Pleev Cov Tshuaj Plua Khaub Ncaws
• Electronics manufacturers
• Cov Tshuaj Siv Rau Tshuaj
• Cov tsev kawm qib siab thiab tsev kawm qib siab thoob ntiaj teb
• Thiab ntxiv.
Peb tshwj xeeb hauv kev pab peb cov neeg tau pom cov tshuaj lom neeg kom haum rau lawv cov kev xav tau. Ib qho ntxiv, peb muab cov kev cai synthesis kom tau raws li qhov xav tau tshwj xeeb ntawm peb cov neeg koom tes. Txawm hais tias koj xav tau ntau qhov ntau rau cov txheej txheem kev muaj lossis cov khoom me me rau cov ntawv thov tshwj xeeb, peb tau txais koj.
Yog tias koj tab tom nrhiav lub cev khoom siv tswj tau zoo, peb yuav zoo siab tau hnov los ntawm koj. Thov xa koj cov lus nug lossis cov ntsiab lus qhia rau sales@leapchem.com. Peb cov neeg ua haujlwm tshaj lij yog xav ua haujlwm nrog koj thiab pab ua tiav koj cov hom phiaj.
Cov FAQ
Q: Cov grigard reagents yog dab tsi?
A: Grignard reagents yog cov ocacagnesium sib txuas siv hauv cov organic bonds, tseem ceeb rau synthesizing complex molecules.
Q: Cov khoom siv grigard reagents tau npaj li cas?
A: Grignard reagents tau npaj los ntawm kev rov ua ib organic halide (RX) nrog cov hlau nplaum hauv ib lub cev muaj zog, feem ntau ether.
Q: Vim li cas cov grignard reagents tseem ceeb?
A: Lawv pab kom tsim cov Carbon-carbon bascon, ua rau lawv tsis tseem ceeb hauv cov kab ke muaj cawv, suav nrog kev siv dej cawv, chaw muag tshuaj, thiab cov tshuaj polymers.
Q: Cov grignard reagents hnov nrog dej?
A: Yog, grignard reagents yog reagents yog cov uas ua kom lawv los hloov cov ocegomagnesium sib txuas rau hauv Alkane.
Q: Dab tsi yog cov kuab tshuaj uas muaj grignard?
A: diethyl ether thiab tetrahydrofuran (Thf) yog cov kuab tshuaj uas feem ntau siv vim tias lawv ruaj khov lub graint reagent.
Q: Dab tsi ntawm cov sib xyaw ua ke tuaj yeem hloov chaw reagents thiab?
A: Grignard reagents hnov nrog aldehydes, Ketor, EPOXides, thiab lwm yam hluav taws xob, thiab lwm yam khoom siv roj carboxylic, thiab ntau cov qauv molecules.
Q: Cov kev txwv ntawm grampard reagents?
A: Grignard reagents yog noo noo-rhiab thiab tuaj yeem nyuaj los lis, xav tau nruj medhydrous tej yam kev mob.
Q: Cov khoom siv grigard siv hauv cov tshuaj li cas?
A: Lawv raug siv los ua cov nqi tseem ceeb ntawm cov roj carbon-carbon bonds nyob rau hauv synthesis ntawm cov khoom xyaw tshuaj muaj zog (APIs) thiab lwm yam txiaj ntsig bioaction.
Q: Cov txiv neej tuaj yeem tsim cov reagents siv nyob rau hauv cov txheej txheem loj-teev?
A: Yog, grignard reagents feem ntau siv nyob rau hauv kev lag luam-nplai synthesis rau kev tsim agnochnicals, tshuaj, thiab tshuaj tshwj xeeb.
Q: Qhov kev ceev faj kev nyab xeeb yog dab tsi thaum siv grignard reagents?
A: Ib txwm ua haujlwm nyob rau hauv qhov chaw inert, hnav cov iav tiv thaiv, thiab zam nrog cov dej khov, raws li cov reagents heev thiab tuaj yeem muaj kev puas tsuaj.
Q: Yuav ua li cas yog muaj dab tsi tshwm sim yog hais tias ib tug grignard reagent reacts nrog CO2?
A: Cov tshuaj tiv thaiv nruab nrab ntawm grignard reagent thiab CO2 tsim cov ntsev carboxylate, uas tuaj yeem ua ntxiv rau cov roj carboxylic acids.
Q: Cov grignard reagents ua cawv ob zaug thiab cov cawv txiv neej?
A: Yog, nyob ntawm lub electrophile siv, grignard reagents tuaj yeem tsim thawj zaug, kev haus dej sib cav sib ceg.
Q: Lub luag haujlwm ntawm magnesium hauv grignard reagents?
A: Magnesium ua raws li lub central at the consilitates tsim ntawm orgetagagnesium Bond, ua kom lub nucleophilic nres ntawm electrophiles.
Q: Cov khoom lag luam grigard reagents siv hauv cov synthesis?
A: Yog, nrog txoj cai chiral auxiliaries lossis catalysts, grignard reagents tuaj yeem siv asymmetric synthesis los tsim chairules molecules.
Q: Dab tsi yog cov ntawm cov txiv los ntawm grignard cov tshuaj tiv thaiv?
A: Cov tshuaj lom neeg raug mob ntawm cov tshuaj pleev xim yog cov ntsev magnesium (Maglesium)
Peb nyob nraum zoo-lub npe hu ua ib qho ntawm cov coj grignard reagents thiab cov muag khoom hauv Suav teb. Peb zoo siab txais tos koj rau lag luam wholesale pheej yig grignard reagents los ntawm peb lub hoobkas. Tiv tauj peb rau kev pabcuam kev cai.
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1, {{1-} carbonydiaimidazole 丨 CAS 530-62-1CAS TSIS MUAJ.: 530-62-1Ntau
Assay (t): 98% min
Khoom npe: 1, 1-} carbondiimidazole
Cov Lus Txhais (s): 1, {1-... -
Palladium 丨 cas 7440-05-3CAS TSIS MUAJ.: 7440-05-3Ntau
Purity / qib: 10% PD / C nyob rau hauv qhuav.
Khoom npe: Palladium
Txhais tau... -
N, n-daimethylformamide Duethyl acetal 丨 cas 4637-24-5CAS TSIS MUAJ.: 4637-24-5Ntau
Assay: 98% min
Khoom npe: n, n-dimethylformamide dimethyl acetal
Cov Lus Txhais... -
Aluminium olide 丨 cas 1344-28-1CAS TSIS MUAJ.: 1344-28-1Ntau
Purity: 99.99% min; Nruab nrab particle loj: 50nm
Khoom npe: Aluminium... -
Tetrakis (tripyenylphosphine) palladium 丨 cas 14221-01-3CAS TSIS MUAJ.: 14221-01-3Ntau
Purity: 99% Min PD: 9.2% min
Khoom npe: Tetrakis (Tripyenylphosphy)... -
Alpha-arbutin 丨 cas 84380-01-8CAS TSIS MUAJ.: 84380-01-8Ntau
Purity: 99.5% min.
Khoom npe: alpha-arbutin
Cov Lus Txhais (s): {{4-... -
N-iodosuccinimide 丨 cas no 516-12-1CAS TSIS MUAJ.: 516-12-1Ntau
Purity / qib: 98. 0}% min
Khoom npe: n-iodosuccinimide
Cov Lus Txhais (s): {{1-... -
Octadecanetiol 丨 cas no 2885-00-9CAS TSIS MUAJ.: 2885-00-9Ntau
Assay (GC): 98. 00}% min
Khoom npe: Octadecanetiol
Kev sib tham (s): n-octadecyl...
