N-boc-ethylenediamine (CAS 57260-73-8)yog ib daim ntawv tiv thaiv ntawm ethylenediamine, qhov twg ib pawg amino yog thaiv los ntawm pawg Boc (-COOC(CH₃)₃). Nws cov synthesis yog ib qho ncaj nraim ob - cov txheej txheem, dav siv nyob rau hauv cov organic chemistry los tiv thaiv amines thaum muaj kev cuam tshuam. Nov yog qhov nws tau ua:
1. Cov khoom siv raw
Cov khoom tseem ceeb pib yog:
- Ethylenediamine:Ib qho yooj yim diamine nrog ob pawg amino (-NH₂) ntawm ob-carbon saw (H₂N-CH₂-CH₂-NH₂).
- Di-tert-butyl dicarbonate (Boc₂O):Cov reagent uas muab cov pab pawg tiv thaiv Boc. Nws reacts xaiv nrog ib pawg amino kom tsis txhob dhau- tiv thaiv.
- Solvent:Feem ntau dichloromethane (DCM) los yog tetrahydrofuran (THF), uas yaj ob lub reactants.
- Base (yeem):Lub hauv paus tsis muaj zog xws li triethylamine tuaj yeem raug ntxiv los ua kom cov khoom lag luam tsis zoo thiab ua kom cov tshuaj tiv thaiv.
2. Cov txheej txheem tshuaj tiv thaiv
Cov synthesis ua raws li cov tshuaj tiv thaiv nucleophilic acyl hloov pauv:
- Kauj ruam 1:Sib tov ethylenediamine nrog Boc₂O nyob rau hauv cov kuab tshuaj, feem ntau nyob rau hauv chav tsev kub los yog txias me ntsis (0-5 degree) los tswj cov tshuaj tiv thaiv tus nqi.
- Kauj ruam 2:Boc₂O reacts nrog ib qho ntawm ethylenediamine cov amino pawg. Cov amino pawg (ib nucleophile) tawm tsam cov carbonyl carbon hauv Boc₂O, tsim ib daim ntawv cog lus thiab tso tawm tert -butanol byproduct.
- Qhov tshwm sim:Ib pawg amino yuav raug tiv thaiv raws li -NH-Boc, thaum lwm qhov tseem nyob dawb (-NH₂), tsim N-boc-ethylenediamine (H₂N-CH₂-CH₂-NH-Boc).
3. Kev huv huv
Tom qab cov tshuaj tiv thaiv (ua tiav hauv 2-4 teev), cov khoom raug ntxuav los ntawm:
- Extraction:Ntxiv dej rau qhov sib tov thiab rho tawm cov organic txheej (muaj cov khoom) nrog DCM.
- Ntxuav:Yaug cov organic txheej nrog dilute acid (kom tshem tawm unreacted ethylenediamine) thiab dej kom tshem tawm impurities.
- Qhuav thiab evaporation:Ua kom qhuav cov organic txheej nrog cov khoom ua kom qhuav (xws li magnesium sulfate) thiab evaporating cov kuab tshuaj kom tau cov khoom nyoos.
- Thaum kawg Purification:Siv kem chromatography lossis recrystallization kom tau cov ntshiab N-boc-ethylenediamine ua kua tsis muaj xim lossis qis- melting solid.
Yog vim li cas qhov no Synthesis tseem ceeb
Txoj kev no muaj txiaj ntsig zoo tiv thaiv ib pab pawg amino, tso cai rau cov kws kho mob hloov kho cov amino pawg dawb hauv cov tshuaj tiv thaiv ntxiv yam tsis muaj kev hloov pauv qhov kev tiv thaiv. Nws tau dav siv hauv kev ua tshuaj, peptides, thiab agrochemicals, qhov kev tswj xyuas meej ntawm cov amino pawg reactivity yog qhov tseem ceeb.
Peb xa tawm N-boc-ethylenediamine tag nrho lub xyoo puag ncig, tuaj yeem ua kom cov khoom lag luam zoo lav rau cov neeg siv khoom.Peb muab Cov Ntawv Pov Thawj Ua Lag Luam, Cov Ntawv Sau, Daim Ntawv Sau Npe, COA.Koj puas xav tau cov khoom no? Thov xa cov lus nug, thiab peb yuav tiv tauj koj hauv 24 teev ua haujlwm los tham txog koj cov kev xav tau.
Tiv tauj peb rau ib qho kev tsocai
Vim li cas thiaj xaiv Gneebio?
Gneebio nrog ntau xyoo dhau los ntawm kev tshawb fawb, kev tsim khoom thiab kev lag luam ntawm cov tshuaj organic, yog ib qho ntawm cov neeg xa khoom ntawm cov khoom siv tshuaj hauv Henan, Suav teb.Tau ntau xyoo, peb tau cog lus rau kev lag luam tshuaj lom neeg ntawm intermediates, yas additives, dej kho tshuaj thiab fungicide, thiab tshuaj txhua hnub.
Peb cov khoom nrov muaj xws li Cov Khoom Siv Hluav Taws Xob (Polyisobutylene, Styrene Monomer, Propylene Glycol, Cyclohexanone, Cyclohexane, Isopropyl Cawv), Cov Tshuaj Txhua Hnub (Didecylmethylamine, Dodecyl dimethyl betaine), thiab ntau yam Petrochemicals (Ethylene Tar, Petroleum).
Qhov zoo
1). Cov khoom xa tuaj me me thiab sub- ntim yog muaj.
2). Muab COA, MSDS, Daim Ntawv Pov Thawj Kev Noj Qab Haus Huv thiab Daim Ntawv Pov Thawj Keeb Kwm.
3). Ua ntej, kev pabcuam zoo tshaj plaws.
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