4-Dibenzothiopheneboronic acidyog ib qho organic compound nrog cov tshuaj formula C12H9BO2S, CAS 108847-20-7. Nws yog ib tug dawb los yog yuav luag dawb khoom nrog ib tug tej yam pungent tsw. Cov qauv molecular muaj ib pawg boric acid thiab ib pawg diphenyl sulfur. Nws tsis tuaj yeem tshwm sim los ntawm qhov kub thiab txias ntawm chav tsev, tab sis tuaj yeem raug decomposition lossis oxidation tshwm sim ntawm qhov kub thiab txias lossis thaum raug huab cua. Nws yog acidic thiab tuaj yeem hnov mob nrog alkali los ua ntsev. Nws tuaj yeem siv los tsim cov dyes thiab pigments, xws li azo dyes, phthalocyanine dyes, thiab fluorescent dyes.
Cov dyes thiab pigments muaj cov xim ci thiab zoo heev ceev ceev, thiab tuaj yeem siv rau dyeing thiab luam ntawv cov ntaub ntawv xws li textiles, tawv, ntawv, thiab lwm yam. Nws muaj peev xwm siv dav hauv kev ua liaj ua teb, ua lub luag haujlwm tseem ceeb hauv kev muab kev tiv thaiv zoo rau cov qoob loo, txhawb lawv txoj kev loj hlob thiab kev loj hlob, txhim kho lawv cov kev ntxhov siab, txhim kho av ib puag ncig, tswj kev ua liaj ua teb, thiab kev txhim kho cov khoom lag luam.
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|
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|
C.F |
C12H9BO2S |
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E.M |
228 |
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M.W |
228 |
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m/z |
228 (100.0%), 227 (24.8%), 229 (13.0%), 230 (4.5%), 228 (3.2%), 229 (1.1%) |
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E.A |
C, 63.20; H, 3.98; B, 4.74; O, 14.03; S, 14.06 |
Environmental pollutant detection thiab tsom xam
Raws li cov organic boron compound, nws cov qauv tshuaj lom neeg tshwj xeeb tuaj yeem ua lub luag haujlwm tseem ceeb hauv kev tshawb pom ib puag ncig. Nyob rau niaj hnub no qhov kev ua qias tuaj ib puag ncig hnyav zuj zus, qhov tseeb thiab ceev nrooj nrhiav thiab tshuaj xyuas cov pa phem hauv ib puag ncig yog qhov tseem ceeb rau kev tiv thaiv ib puag ncig thiab kev tswj hwm.
Raws li ib tug marker:4-Dibenzothiopheneboronic acidtuaj yeem ua ke nrog qee yam kev ua qias tuaj ib puag ncig los ntawm cov tshuaj lom neeg tshwj xeeb los tsim cov khoom sib txuas uas yooj yim rau kev txheeb xyuas thiab txheeb xyuas.Qhov kev sib xyaw ua ke no tsis yog tsuas yog txhim kho qhov rhiab heev ntawm kev tshawb pom, tab sis kuj pab txiav txim seb hom thiab concentration ntawm cov pa phem.
Rau cov sensors: Raws li nws cov khoom siv tshuaj, cov khoom siv hluav taws xob tuaj yeem tsim kho kom pom cov pa phem ib puag ncig. Cov sensors no tuaj yeem saib xyuas qhov concentration ntawm cov pa phem hauv ib puag ncig hauv lub sijhawm tiag tiag, muab cov ntaub ntawv raws sijhawm thiab raug txhawb rau cov chaw tiv thaiv ib puag ncig.
Kev kho ib puag ncig thiab kev tswj hwm
Hais txog kev kho ib puag ncig thiab kev tswj hwm, nws tuaj yeem ua lub luag haujlwm los ntawm cov hauv qab no:
Txhawb kom muaj kuab paug degradation: tuaj yeem ua tus cofactor rau qee yam kab mob lossis cov enzymes, koom nrog cov txheej txheem biodegradation ntawm cov pa phem. Los ntawm kev txhawb nqa biodegradation ntawm cov pa phem, qhov concentration ntawm cov pa phem hauv ib puag ncig tuaj yeem txo qis, txhim kho ib puag ncig zoo.
Raws li ib qho adsorbent: nws muaj cov qauv tshuaj tshwj xeeb thiab cov khoom saum npoo av, thiab tuaj yeem pom muaj peev xwm adsorption rau qee cov pa phem. Los ntawm kev siv nws ua ib qho adsorbent hauv kev kho ib puag ncig, cov khoom tsis zoo xws li cov hlau hnyav ions thiab cov pa phem hauv dej tuaj yeem raug tshem tawm zoo.
Koom nrog cov tshuaj tiv thaiv photocatalytic: Hauv cov tshuaj tiv thaiv photocatalytic, nws tuaj yeem ua raws li photosensitizer lossis catalyst los txhawb cov photocatalytic degradation ntawm cov pa phem. Txoj kev degradation no muaj cov yam ntxwv ntawm kev ua haujlwm siab thiab kev tiv thaiv ib puag ncig, thiab yog ib qho ntawm cov kev tshawb fawb hotspots hauv kev kho ib puag ncig.
Kev soj ntsuam ib puag ncig thiab kev soj ntsuam
Kev saib xyuas ib puag ncig thiab kev ntsuas ib puag ncig yog cov khoom tseem ceeb ntawm kev tiv thaiv ib puag ncig. Lub luag haujlwm muaj peev xwm hauv kev saib xyuas ib puag ncig thiab kev ntsuas muaj xws li:
Raws li qhov taw qhia: nws yuav muaj kev ua haujlwm tshwj xeeb rau qee yam kev ua qias tuaj ib puag ncig thiab yog li ntawd tuaj yeem siv los ua qhov taw qhia hauv kev saib xyuas ib puag ncig. Los ntawm kev saib xyuas nws cov kev hloov pauv hauv ib puag ncig, nws tuaj yeem cuam tshuam ncaj qha rau qhov muaj thiab concentration ntawm cov pa phem.
Koom nrog hauv kev soj ntsuam kev pheej hmoo: Hauv cov txheej txheem ntawm kev ntsuas kev pheej hmoo ib puag ncig, nws tuaj yeem siv los ua ib qho ntawm cov kev ntsuas ntsuas los ntsuas qhov cuam tshuam ntawm cov pa phem rau ib puag ncig thiab ecosystems. Los ntawm kev xav txog cov xwm txheej xws li qhov xwm txheej, qhov xav tau, thiab lwm yam kev ua haujlwm ntawm cov pa phem, qib ntawm ib puag ncig kev pheej hmoo tuaj yeem raug ntsuas kom raug.
Environmental Education thiab Promotion
Kev kawm ib puag ncig thiab kev tshaj tawm yog ib qho tseem ceeb txhais tau tias los txhawb kev paub txog kev tiv thaiv ib puag ncig thiab txhawb kev tiv thaiv ib puag ncig. Lub luag haujlwm ua tau hauv ib puag ncig kev kawm thiab kev txhawb nqa muaj xws li:
Raws li cov ntaub ntawv qhia: Hauv kev qhia txog kev qhuab qhia xws li kev tshawb fawb txog ib puag ncig thiab chemistry, nws tuaj yeem siv los ua ib qho ntawm cov ntaub ntawv qhia los qhia txog nws daim ntawv thov thiab qhov tseem ceeb hauv kev tiv thaiv ib puag ncig. Los ntawm kev txheeb xyuas cov ntaub ntawv, cov tub ntxhais kawm tuaj yeem nkag siab zoo txog qhov ceev thiab qhov tsim nyog ntawm kev tiv thaiv ib puag ncig.
Rau science popularization: Nyob rau hauv science popularization kev ua ub no, nws cov tshuaj muaj pes tsawg leeg thiab daim ntawv thov piv txwv yuav siv tau los nthuav ib puag ncig kev paub txog kev tiv thaiv rau pej xeem. Los ntawm cov ntsiab lus tseem ceeb thiab nthuav dav kev tshawb fawb, nws tuaj yeem txhawb cov pej xeem nyiam thiab txaus siab rau kev tiv thaiv ib puag ncig.
Cog kev loj hlob regulators
Txhawb kev loj hlob ntawm cov nroj tsuag: Boron yog ib qho tseem ceeb ntawm cov kab mob rau cov nroj tsuag kev loj hlob thiab ua lub luag haujlwm tseem ceeb hauv cov nroj tsuag kev loj hlob thiab kev loj hlob. Txawm hais tias nws txawv ntawm cov chiv boron zoo tib yam, cov boron atoms nws muaj tuaj yeem txhawb kev loj hlob ntawm cov nroj tsuag los ntawm qee cov txheej txheem. Piv txwv li, nws tuaj yeem koom nrog cov txheej txheem metabolic hauv cov nroj tsuag, cuam tshuam rau kev sib txuas thiab thauj cov tshuaj hormones cog, yog li tswj cov nroj tsuag kev loj hlob thiab morphology.
Txhim kho qoob loo kev ntxhov siab: Boron muaj txiaj ntsig zoo rau kev txhim kho qoob loo kev ntxhov siab. Nws muaj peev xwm txhim kho cov antioxidant muaj peev xwm ntawm cov qoob loo, tswj cov cell osmotic siab, thiab txhim kho lawv cov kev tiv thaiv rau kev nyuaj siab xws li drought, salinity, thiab kab tsuag thiab kab mob.
Kev txhim kho av thiab kev tsim cov chiv
Av boron ntxiv: Rau cov av tsis muaj boron, nws tuaj yeem siv los ua ib qho ntxiv rau cov ntsiab lus boron. Los ntawm kev siv nws rau hauv av, cov ntsiab lus boron hauv av tuaj yeem nce ntxiv, kev noj zaub mov zoo ntawm cov av tuaj yeem txhim kho, thiab cov ntsiab lus boron txaus tuaj yeem muab rau cov nroj tsuag.
Txhim kho kev siv cov chiv kom zoo: Tej zaum yuav cuam tshuam nrog lwm cov as-ham hauv cov av kom txhim kho kev siv cov chiv. Piv txwv li, nws yuav muaj kev sib koom ua ke nrog nitrogen chiv, phosphorus chiv, thiab lwm yam, txhawb kev nqus thiab siv cov as-ham los ntawm cov nroj tsuag.
Txoj kev redox yog ib txoj kev siv feem ntau rau kev sib txuas4-Dibenzothiopheneboronic acid. Txoj kev no feem ntau siv thiophenol ua cov khoom siv raw thiab tau txais cov khoom los ntawm cov tshuaj tiv thaiv oxidation.
Kev npaj ua ntej synthesis:
Npaj cov khoom siv raw khoom tsim nyog thiab cov tshuaj reagents xws li thiophenol, oxidant, hnyav, nrog rau cov khoom siv sim xws li tshuaj tiv thaiv kettle, stirrer, tus pas ntsuas kub, thiab lwm yam.
Cov tshuaj tiv thaiv oxidation:
Dissolve thiophenol nyob rau hauv ib qho hnyav, ntxiv qhov tsim nyog ntawm oxidant, thiab pib cov tshuaj tiv thaiv oxidation. Oxidants tuaj yeem yog peroxides, oxygen, nitric acid, thiab lwm yam, thaum cov kuab tshuaj tuaj yeem ua cov kuab tshuaj organic xws li cawv, ethers, ketones, thiab lwm yam.
Sib cais thiab purification:
Tom qab cov tshuaj tiv thaiv tiav, cov tshuaj tiv thaiv yog lim kom cais cov khoom catalyst thiab lim. Evaporate thiab concentrate cov filtrate kom tau cov khoom nyoos.
Txo cov tshuaj tiv thaiv:
Dissolve cov khoom crude nyob rau hauv ib tug hnyav, ntxiv ib tug tsim nyog tus nqi ntawm txo tus neeg sawv cev, thiab pib txo cov tshuaj tiv thaiv. Tus neeg sawv cev txo qis tuaj yeem yog hlau hydride, cawv raws li borate ester, thiab lwm yam, thiab cov kuab tshuaj yog tib yam li saum toj no.
Crystallization ziab:
Tom qab cov tshuaj tiv thaiv tiav, cov tshuaj tiv thaiv yog lim kom cais cov catalyst thiab lim. Evaporate thiab concentrate cov filtrate kom tau cov muaju. Qhuav lub siv lead ua kom tau txais cov khoom kawg.
Chemical Equation:
C6H5SH + Oxidant → C6H4(OH)S(O)xH + H2O
(C6H4(OH)S(O)xH) + Reducer → C6H4(OH)B (OH)2 + Los ntawm cov khoom
Ntawm lawv, C6H5SH sawv cev rau thiophenol, Oxidant sawv cev rau oxidant, C6H4 (OH) S (O) xH sawv cev rau oxidation khoom, Reductor sawv cev rau txo tus neeg sawv cev, C6H4 (OH) B (OH) 2 sawv cev 4 Dibenzothiopheneboronic acid, thiab Cov khoom sawv cev los ntawm {{8}product.
Txoj kev Sulfonation yog ib txoj hauv kev rau kev sib txuas cov khoom, uas siv benzene lossis diphenylsulfone ua raw khoom thiab tau txais cov khoom lag luam los ntawm sulfonation cov tshuaj tiv thaiv.
Kev npaj ua ntej synthesis:
Npaj cov khoom siv raw thiab cov tshuaj reagents xws li benzene lossis diphenylsulfone, sulfonation agents, cov kuab tshuaj, nrog rau cov khoom siv sim xws li reactors, stirrers, thermometers, thiab lwm yam.
Cov tshuaj tiv thaiv sulfonation:
Dissolve benzene los yog diphenylsulfone nyob rau hauv ib qho hnyav, ntxiv tus nqi tsim nyog ntawm sulfonation tus neeg sawv cev, thiab pib cov tshuaj sulfonation. Cov tshuaj sulfonating tuaj yeem yog sulfuric acid, chlorosulfonic acid, thiab lwm yam, thaum cov kuab tshuaj tuaj yeem yog dej, cov kuab tshuaj organic, thiab lwm yam.
Sib cais thiab purification:
Tom qab cov tshuaj tiv thaiv tiav, txias cov tshuaj tiv thaiv rau hauv chav sov thiab lim kom tshem tawm cov impurities insoluble. Kho tus nqi pH ntawm cov lim kom nruab nrab nrog cov tshuaj alkaline, thiab tom qab ntawd evaporate thiab mloog zoo kom tau txais cov khoom nyoos.
Kev hloov pauv mus rau lub hom phiaj cov khoom:
Dissolve cov khoom crude nyob rau hauv ib tug organic hnyav, ntxiv ib tug tsim nyog tus nqi ntawm alkali los yog acidic catalyst, thiab nqa tawm lub hloov dua siab tshiab cov tshuaj tiv thaiv. Cov catalyst tuaj yeem yog sodium hydroxide, potassium hydroxide, lossis hydrochloric acid.
Crystallization ziab:
Tom qab cov tshuaj tiv thaiv tiav, cov tshuaj tiv thaiv yog lim kom cais cov catalyst thiab lim. Evaporate thiab concentrate cov filtrate kom tau cov muaju. Qhuav lub siv lead ua kom tau txais cov khoom kawg.
Chemical Equation:
C6H6+SO3 → C6H4(SO3H) + H2O
C6H4(SO3H) + 2NaOH → C6H4(OH)B (OH)2+ Na2SO4 + 2H2O
Ntawm lawv, C6H6 sawv cev rau benzene, C6H4 (SO3H) sawv cev rau benzenesulfonic acid, C6H4 (OH) B (OH) 2 sawv cev rau cov khoom, thiab Na2SO4 sawv cev sodium sulfate.
I. Foundational Theem (1950s–1980s)
Kev tshawb fawb ntawm organoboron tebchaw pib nyob rau hauv nruab nrab-19th caug xyoo. Ib qho kev tawg loj hauv cov organoboron chemistry niaj hnub tuaj nrog cov tshuaj tiv thaiv hydroboration pom los ntawm Herbert C.
Brown hauv xyoo 1950s, uas tau tso lub hauv paus rau kev sib txuas ntawm alkyl thiab alkenyl boronic acids. Txij xyoo 1970 mus txog rau xyoo 1980, Suzuki-Miyaura kev sib txuas lus tau maj mam ua tiav.
Aryl boronic acids tau dhau los ua cov txheej txheem tseem ceeb rau kev tsim cov pa roj carbon-carbon bonds vim lawv qhov kev ruaj ntseg siab, ua haujlwm zoo pab pawg neeg siab ntev thiab tsis muaj tshuaj lom, ua rau muaj kev loj hlob ntawm heterocyclic boronic acids.
Raws li ib tug sulfur - muaj fused aromatic hydrocarbon, dibenzothiophene nta siab electron huab ceev ntawm 4-txoj hauj lwm, ua rau nws yog ib tug tseem ceeb qhov chaw rau kev hloov kho thiab coj cov synthesis ntawm 4-bromodibenzothiophene, tus tseem ceeb precursor.
II. Thawj Synthesis thiab Structure Verification (1990s)
Nyob rau hauv thaum ntxov 1990s, nrog rau maturation ntawm lithiation -borylation tshuab rau halogenated heterocycles,4-dibenzothiopheneboronic acidyog thawj zaug synthesized thiab tshaj tawm.
Txoj kev siv hluavtaws tseem ceeb siv 4-bromodibenzothiophene ua cov khoom pib. Raws li kev tiv thaiv nitrogen ntawm -78 degree, cov khoom siv raw tau dhau los ua lithiation nrog n-butyllithium, ua raws li cov tshuaj tiv thaiv nrog trimethyl borate.
Lub hom phiaj cov khoom yog tau los ntawm acidification thiab kem chromatography purification, nrog ib tug tawm los ntawm kwv yees li 82%. Nyob ib ncig ntawm 1995, lub compound tau sau npe nrog CAS tus lej 108847-20-7, kos npe rau nws cov ntaub ntawv suav nrog hauv cov khoom siv tshuaj lom neeg.
Lub caij no, cov txheej txheem ua tus cwj pwm suav nrog NMR thiab XRD tau lees paub nws cov qauv molecular (C₁₂H₉BO₂S) thiab tshawb xyuas tias pawg boronic acid txuas nrog 4-txoj hauj lwm ntawm dibenzothiophene.
III. Kev nthuav dav ntawm daim ntawv thov thiab kev ua kom zoo tshaj plaws (Early 21st Century to Present)
Tom qab xyoo 2000, kev xav tau nce ntxiv hauv OLED cov ntaub ntawv, cov tshuaj nruab nrab thiab cov organic catalysis txhawb nqa nws qhov loj - teev ntau lawm. Nyob nruab nrab ntawm xyoo 2010 thiab 2015, txoj kev Miyaura borylation (palladium-catalyzed, nrog bis (pinacolato) diboron raws li boron qhov chaw) maj mam hloov txoj kev lithiation ib txwm.
Nws nta cov tshuaj tiv thaiv me me thiab kev ua haujlwm dav dav ntawm pab pawg sib raug zoo, ua rau nws tsim nyog rau kev tsim khoom lag luam. Los ntawm 2015 txog 2020, manufacturers hauv Suav teb, Kaus Lim Qab Teb thiab lwm lub teb chaws tau txhim kho cov txheej txheem ntau lawm.
Kev saws me nyuam ntawm ib qho - lauj kaub txoj kev yooj yim cov txheej txheem thiab txiav cov nqi, hloov qhov sib xyaw no rau hauv tus nqi - siv tau zoo fused - nplhaib boronic acid tsev thaiv. Tam sim no nws tau siv dav hauv kev sib txuas ntawm xiav - cov ntaub ntawv OLED lub teeb, tshuaj tiv thaiv - qog cov tshuaj intermediates thiab cov organic ligands.
Cim npe nrov: 4-dibenzothiopheneboronic acid CAS 108847-20-7, lwm tus neeg, manufacturers, hoobkas, lag luam wholesale, yuav, nqe, tej, kev muag khoom