Taw qhia ntawm CAS: 2039-88-5|2-Bromostyrene
2-Bromostyrene yog ib qho brominated derivative ntawm styrene, uas yog ib qho organic compound nrog ib pawg yas txuas nrog phenyl pawg. Lub bromine atom nyob rau hauv 2-bromostyrene yog positioned nyob rau hauv lub thib ob carbon ntawm vinyl pab pawg neeg, ua rau nws yog ib qho tseem ceeb intermediate nyob rau hauv ntau yam tshuaj tiv thaiv thiab syntheses.
Synthesis Analysis
Lub synthesis ntawm hloov trans{{0}}bromostyrenes tuaj yeem ua tiav los ntawm ib lub lauj kaub ob-kauj ruam ib ntus uas muaj palladium(0) catalyzed coupling cov tshuaj tiv thaiv ntawm trans-1,2-Bis (tri-n-butylstannyl) ethylene nrog aromatic halides, ua raws li qhov sib ntxiv ntawm molecular bromine mus rau nruab nrab vinyl stannane yam tsis muaj kev sib cais2. Txoj kev no muab txoj hauv kev yooj yim kom tau txais trans- -bromostyrenes hauv nruab nrab mus rau siab yields.
Specification of CAS: 2039-88-5|2-Bromostyrene
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Yam khoom |
SPECIFICATION |
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Refractive Index |
n20/D 1.592 (lit.) |
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Boiling point |
102-104 degree / 22 mmHg (lit.) |
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Daim ntawv |
pob tshab kua |
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Xim |
Colorless rau daj |
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Qhov ntom |
1.46 g / mL ntawm 25 degree (lit.) |
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Kev cia khoom |
2-8 degree |
Kev Tshawb Fawb Daim Ntawv Thov CAS: 2039-88-5|2-Bromostyrene
Kev Tshawb Fawb thiab Kev Siv Polymer
2-Bromostyrene ua lub luag haujlwm tseem ceeb hauv kev tshawb fawb polymer. Yuan et al. (2011) tau qhia nws siv los tsim cov dej-soluble txhuam polymers thiab polyelectrolyte copolymer. Cov copolymers no muaj peev xwm siv tau los ua stabilizers hauv heterophase polymerization thiab tuaj yeem pom cov khoom siv ionic (Yuan li al., 2011).
Quantum Mechanical Studyog thiab Polymer Flexibility
Navarro et al. (2009) tau ua quantum mechanical kev tshawb fawb txog kev hloov pauv ntawm cov polymers tau los ntawm 2- thiab 4-bromostyrene. Los ntawm kev tshuaj xyuas cov qauv molecular hloov ntawm monomer mus rau tetramer, lawv tau muab kev nkag siab txog yuav ua li cas hloov cov molecular me me tuaj yeem cuam tshuam rau cov khoom siv polymer xws li iav hloov kub, ua kom pom qhov tseem ceeb ntawm 2-bromostyrene hauv kev nkag siab thiab kwv yees tus cwj pwm polymer (Navarro li al., 2009). ).
Photochemistry thiab Radical Reactions
Hauv kev tshawb fawb photochemical, tus cwj pwm ntawm 2-bromostyrene derivatives thaum lub sij hawm muaj kev cuam tshuam radical tau qhia meej. Gronheid et al. (2003) tau tshuaj xyuas cov photochemistry ntawm (E)-bromostyrene, nthuav tawm kev nkag siab txog kev tsim cov vinylic cations thiab radicals, uas yog qhov tseem ceeb hauv kev nkag siab txog cov tshuaj reactivity ntawm cov tebchaw nyob rau hauv lub teeb raug (Gronheid li al., 2003).
Catalysis thiab Chemical Transformations
2-Bromostyrene tau koom nrog hauv kev tshawb fawb tsom mus rau catalysis thiab tshuaj hloov pauv. Feng et al. (2015) tau tshawb xyuas cov txheej txheem bromination ntawm cov khoom siv tshwj xeeb, muab kev nkag siab rau hauv kev tsim cov tshuaj brominated thiab lawv cov peev xwm hauv kev sib txuas sib txuas (Feng li al., 2015).
Cov ntawv thov hauv Materials Science
Lub ntsiab lus tseem ceeb txuas mus rau cov ntaub ntawv tshawb fawb, qhov twg nws cov khoom siv tau siv los tsim cov khoom siv rau cov khoom siv hluav taws xob. Piv txwv li, cov polymers nqa 2-bromostyrene units tau raug tsim los rau cov ntawv thov hauv cov organic teeb-emitting diodes thiab lwm yam khoom siv hluav taws xob vim lawv cov khoom siv photophysical xav tau (Peter & Thelakkat, 2003).
Cim npe nrov: cas:2039-88-5|2-bromostyrene, Tuam Tshoj cas:2039-88-5|2-bromostyrene manufacturers, hoobkas
