N-Methylaniline CAS 100-61-8

N-Methylanilineyog aniline derivative. Nws yog ib qho organic compound nrog cov tshuaj formula C6H5NH(CH3). Cov khoom muaj nyob rau hauv cov xim tsis muaj xim lossis daj me ntsis kua nplaum thiab tig xim av thaum raug huab cua. Me ntsis soluble hauv dej tab sis soluble hauv ethanol, ether, thiab chloroform. Nws yog siv los ua ib qho latent thiab coupling hnyav thiab tseem siv los ua ib qho nruab nrab rau dyes, agrochemicals thiab lwm yam khoom lag luam organic. Nws yog ib qho tseem ceeb ntawm MMA (monomethylaniline), tus neeg sawv cev tiv thaiv kab mob, siv los ua kom tus lej octane, zoo dua li Methyl tert -butyl ether. Feem ntau ntxiv rau cov roj av hauv cov concentrations ib ncig ntawm 1.3% huab hwm coj.

Kev tsim tawm ntawmN-Methylanilinekoom nrog ntau txoj hauv kev, txhua tus nrog nws cov yam ntxwv tshwj xeeb thiab kev siv. Ib txoj hauv kev ib txwm muaj xws li alkylation ntawm aniline nrog methanol siv sulfuric acid ua cov khoom siv hauv lub siab. Txawm li cas los xij, txoj kev no tsis tshua muaj txiaj ntsig vim nws qhov kev xaiv qis, tsis tshua muaj txiaj ntsig, muaj kuab paug loj, thiab cov khoom siv teeb meem corrosion.

Ib txoj kev siv ntau niaj hnub no suav nrog cov tshuaj tiv thaiv ntawm aniline thiab methanol nyob rau hauv muaj cov tooj liab -zinc-chromium catalyst. Cov txheej txheem no tsim cov khoom nyoos, uas yog tom qab ntawd purified los ntawm distillation. Qhov tshwm sim feem ntau muaj qhov purity siab, nrog rau qib qis ntawm aniline thiab N, N-dimethylaniline.

Lwm txoj hauv kev suav nrog kev siv cov tshuaj trichlorophosphine catalyst. Hauv cov txheej txheem no, aniline thiab methanol hnov ​​​​mob ntawm qhov kub thiab txias los tsim nws. Txawm li cas los xij, qhov kev xaiv thiab cov txiaj ntsig ntawm txoj kev no yog qis dua piv rau tooj liab -zinc-chromium catalyst txoj kev.

Ntxiv nrog rau cov txheej txheem no, kuj tseem muaj lwm txoj hauv kev xws li kev txo qis hydrogenation ntawm nitrobenzene siv hydrogen nyob rau hauv lub xub ntiag ntawm catalyst, uas tam sim no yog ib tug mainstream txheej txheem ntau lawm. Txoj kev no converts nitrobenzene rau hauvN-methylanilineua tau zoo.

Tsis hais txog ntawm txoj kev xaiv, nws yog ib qho tseem ceeb kom ua tib zoo tswj cov tshuaj tiv thaiv, nrog rau qhov kub thiab txias, siab, thiab kev xaiv thiab ntau npaum li cas ntawm catalysts. Qhov no ua kom cov kev ua tau zoo thiab kev xaiv ntawm cov tshuaj tiv thaiv. Tsis tas li ntawd, kev ntsuas kev nyab xeeb yuav tsum tau ua raws li nruj me ntsis raws li cov txheej txheem tsim khoom los tiv thaiv kev tawg, raug tshuaj lom, thiab hluav taws kub, yog li tiv thaiv cov neeg ua haujlwm thiab khoom siv.

Zuag qhia tag nrho, kev tsim khoom muaj ntau txoj hauv kev, txhua tus nrog nws qhov zoo thiab qhov tsis zoo. Kev xaiv ntawm txoj kev tsim khoom yog nyob ntawm yam xws li kev tsim khoom, kev ua haujlwm ntawm kev lag luam, thiab kev xav txog ib puag ncig.

Chemical Synthesis thiab Organic Intermediates

N-Methylanilineua hauj lwm raws li ib qho tseem ceeb nruab nrab ntawm cov organic synthesis. Nws tuaj yeem siv los tsim ntau yam organic tebchaw, suav nrog dyes thiab tshuaj tua kab. Nws reactivity tso cai rau nws mus koom nyob rau hauv ntau cov tshuaj tiv thaiv, ua rau nws ib tug tseem ceeb lub tsev thaiv nyob rau hauv lub synthesis ntawm complex molecules.

Dye Industry

Hauv kev lag luam dyeing, nws plays lub luag haujlwm tseem ceeb. Nws yog siv los tsim ntau yam xim, xws li cationic ci liab, cationic pinks, thiab reactive yellows. Cov dyes no pom cov ntawv thov hauv textile, luam ntawv, thiab lwm yam kev lag luam, uas lawv siv rau xim ntaub, ntawv, thiab lwm yam ntaub ntawv.

Kev tsim tshuaj tua kab

Nws kuj yog siv rau hauv kev tsim cov tshuaj tua kab. Nws tuaj yeem siv los tsim cov tshuaj tua kab thiab tshuaj tua kab uas muaj txiaj ntsig zoo hauv kev tswj cov kab tsuag thiab nroj tsuag. Cov tshuaj tua kab no tseem ceeb heev hauv kev tiv thaiv cov qoob loo thiab tswj kev ua liaj ua teb.

Solvent thiab Acid Absorbent

Vim nws cov khoom solubility, nws tuaj yeem siv los ua cov kuab tshuaj hauv ntau yam tshuaj lom neeg thiab cov txheej txheem. Nws tuaj yeem ua raws li cov kua qaub absorbent, pab kom tsis txhob muaj cov kua qaub hauv cov ntawv thov kev lag luam.

Kev lag luam Polymer

Nws tseem tuaj yeem siv rau hauv cov khoom siv polymer. Nws tuaj yeem cuam tshuam nrog lwm cov tebchaw los tsim cov polymers nrog cov khoom siv tshwj xeeb. Cov polymers no pom cov ntawv thov hauv thaj chaw xws li txheej txheej, yas, thiab cov nplaum, uas lawv txhim kho qhov ruaj khov thiab ua haujlwm ntev ntawm cov khoom kawg.

Kev siv tshuaj

Hauv kev lag luam kws tshuaj, nws tuaj yeem siv los ua ib qho nruab nrab hauv kev sib xyaw ntawm qee yam tshuaj. Nws ua lub luag haujlwm hauv kev tsim cov tshuaj uas siv los kho ntau yam mob thiab kab mob. Txawm li cas los xij, nws txoj kev siv tshuaj yuav tsum muaj kev tswj hwm nruj thiab ntsuas kev nyab xeeb kom ntseeg tau tias muaj kev nyab xeeb thiab ua haujlwm zoo ntawm cov tshuaj kawg.

Photovoltaic thiab Electronic Applications

Vim nws cov khoom hluav taws xob, nws kuj pom cov ntawv thov hauv photovoltaic thiab hluav taws xob kev lag luam. Nws tuaj yeem siv rau hauv kev tsim cov organic solar cells thiab lwm yam khoom siv hluav taws xob, qhov twg nws ua raws li cov khoom siv hluav taws xob thauj khoom, txhawb kev hloov dua siab tshiab thiab khaws cia ntawm photovoltaic zog.

 

Hauv cov ntsiab lus,N-Methylanilineyog ib qho kev sib xyaw ua ke nrog ntau yam kev siv. Nws siv dav los ntawm cov tshuaj synthesis thiab dye ntau lawm rau tshuaj tua kab thiab tshuaj synthesis. Nrog nws cov khoom sib txawv reactivity thiab solubility, nws tseem ua lub luag haujlwm tseem ceeb hauv ntau lub lag luam thoob ntiaj teb.

Lub discovery ntawmN-methylanilinetsis tuaj yeem sib cais los ntawm kev kawm ntawm nws niam txiv compound, aniline (C ₆ H ₅ NH ₂). Aniline yog thawj zaug tau los ntawm German chemist Otto Unverdorben nyob rau hauv 1826 los ntawm qhuav distillation ntawm indigo, thiab nws tis npe rau nws "Krystalin". Xyoo 1834, Friedrich Runge cais aniline los ntawm thee tar thiab pom nws cov tshuaj tiv thaiv nrog cov roj chlorine los tsim cov tshuaj xiav (uas tom qab ntawd los ua lub hauv paus rau aniline dyes). Nyob rau hauv 1840, Yuly Fritzsche tau aniline los ntawm alkaline kev kho mob ntawm indigo thiab officially hu ua nws "Aniline", muab los ntawm Portuguese lo lus "anil" (indigo). Qhov kev tshawb pom ntawm aniline txhawb txoj kev loj hlob ntawm cov organic amine chemistry, thiab cov kws tshawb fawb tau pib kawm nws cov derivatives, suav nrog cov khoom methylation. Cov synthesis ntawm N-methylaniline tau ua tiav hauv cov ntsiab lus no.
Cov synthesis ntawm N-methylaniline tuaj yeem taug qab mus rau nruab nrab- xyoo pua 19th, thaum chemists pib tshawb nrhiav cov tshuaj tiv thaiv alkylation ntawm aniline. Xyoo 1850, Fab Kis kws tshuaj Auguste Cahours thiab Adolphe Wurtz thawj zaug tau tshaj tawm ib txoj hauv kev los npaj N-methylaniline los ntawm reacting aniline nrog methanol lossis iodomethane. Lawv pom tias aniline tuaj yeem ua rau cov tshuaj methylation reagents (xws li CH3 I) nyob rau hauv alkaline tej yam kev mob los tsim cov khoom monomethylated (N-methylaniline) thiab cov khoom dimethylated (N, N-dimethylaniline).

Qhov sib npaug ntawm cov tshuaj tiv thaiv yog raws li nram no:

C6​H5​NH2​+CH3​I →C6​H5​NHCH3​+HI

Qhov kev tshawb pom no cim qhov kev pom zoo ntawm N-methylaniline ua cov organic amine tshiab. Tom qab ntawd, German chemists Hermann Kolbe thiab Edward Frankland tau kawm ntxiv txog cov txheej txheem ntawm alkylation cov tshuaj tiv thaiv, tso lub hauv paus rau cov organic synthesis chemistry.Nyob rau hauv lub thib ob ib nrab ntawm lub xyoo pua 19th, nrog rau txoj kev loj hlob ntawm cov organic qauv txoj kev xav, lub molecular qauv ntawm NMA maj los ua tseeb. Xyoo 1865, Friedrich Kekul é tau npaj txoj kev xav ntawm benzene nplhaib qauv, uas ua rau cov qauv ntawm aniline thiab nws cov derivatives clearer. NMA tau lees paub tias yog cov khoom lag luam uas ib qho hydrogen hauv aniline hloov los ntawm pawg methyl (- CH3). Nyob rau xyoo 1870, cov kws tshuaj tau pib kawm lub cev thiab tshuaj lom neeg ntawm NMA, suav nrog:

• Alkaline: NMA yog me ntsis alkaline dua li aniline vim tias cov electron pub dawb ntawm methyl txhim kho cov electron ceev ntawm nitrogen atoms.
• Cov tshuaj tiv thaiv oxidation: NMA tuaj yeem oxidized rau nitroso lossis nitro compounds.
• Cov tshuaj tiv thaiv acid: tuaj yeem tsim cov ntsev ruaj khov, xws li N-methylaniline hydrochloride (C ₆ H ₅ NHCH ∝· HCl).

Cov kev tshawb fawb no muab lub hauv paus theoretical rau kev ua lag luam ntawm NMA.

Nrog rau kev loj hlob ntawm kev lag luam dyeing, qhov kev thov rau N-methylaniline tau nce sai heev. Cov tuam txhab tshuaj German xws li BASF thiab Hoechst tau tsim cov txheej txheem kev tsim khoom zoo, feem ntau suav nrog:

• Methylation ntawm aniline: Nyob rau hauv qhov kub thiab txias, aniline reacts nrog methanol los yog dimethyl sulfate los ua N-methylaniline.

C6H5NH2+CH3OHH2SO4 C6H5NHCH3+H2O

• Txo methylation: Aniline reacts nrog formaldehyde thiab hydrogen gas nyob rau hauv qhov kev ua ntawm ib tug catalyst (xws li Ni los yog Cu) los tsim N-methylaniline.

Cov txheej txheem no ua rau loj - nplai ntau lawm ntawm N-methylaniline ua tau thiab txhawb nqa nws daim ntawv thov hauv kev sib xyaw xim

Cim npe nrov: n-methylaniline cas 100-61-8, lwm tus neeg, manufacturers, hoobkas, lag luam wholesale, yuav, nqe, tej, kev muag khoom