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2-BROMO-3-METHOXYPYRIDINE (CAS # 24100-18-3)

Chemical Property:

Molecular Formula C6H6BrNO
Molar Mass 188.02 Nws
Qhov ntom 1.530 ± 0.06 g / cm3 (Kev kwv yees)
Melting Point 45-49 ° C (lit.)
Boling Point 233.4 ± 20.0 ° C (Tshaj tawm)
Flash Point > 230 ° F
Solubility Dichloromethane
Vapor Siab 0.0852mmHg ntawm 25 ° C
Qhov tshwm sim Crystalline hmoov
Xim Dawb rau cream
pKa -0.51 ± 0.10 (Tshaj tawm)
Kev cia khoom Khaws nyob rau hauv qhov chaw tsaus, kaw hauv qhuav, Chav Kub
Refractive Index 1.542 ib
MDL TIAB SA 01570896

Product Detail

Khoom cim npe

Hazard Cov Cim Xn – Ua phem
Risk Codes R22 - Ua phem yog tias nqos
R37/38 - Kab mob ua pa thiab tawv nqaij.
R41 - Riam phom loj rau qhov muag
Kev nyab xeeb piav qhia S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob.
S39 - Hnav qhov muag / ntsej muag tiv thaiv.
WGK Germany 3
HS Code 293339 0

 

Taw qhia

2-bromo-3-methoxypyridine yog ib qho organic compound nrog cov tshuaj formula C6H6BrNO. Cov hauv qab no yog cov lus piav qhia ntawm nws qhov xwm txheej, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb:

 

Xwm:

-Cov tsos mob: cov kua tsis muaj xim

-Solubility: Soluble nyob rau hauv anhydrous ethanol thiab Ether cov kuab tshuaj

- Kub taw tes: 167-169 ° C

Qhov ceev: 1.568 g / mL

 

Siv:

2-bromo-3-methoxypyridine muaj qee yam kev siv hauv thaj chaw ntawm chemistry:

-Raws li qhov nruab nrab: tuaj yeem siv los tsim lwm cov organic sib txuas, xws li tshuaj, tshuaj tua kab thiab tshuaj zawv plaub hau.

-Organic synthesis: Nws tuaj yeem koom nrog ntau yam kev sib txawv, xws li kev hloov pauv ntawm electrophilic, condensation tshua, thiab lwm yam.

 

Txoj kev:

2-bromo-3-methoxypyridine synthesis txoj kev yog cov hauv qab no:

1. Los ntawm cov tshuaj tiv thaiv ntawm 3-methoxypyridine thiab bromine: 3-methoxypyridine reacted nrog bromine thiab rhuab nyob rau hauv alkaline tej yam kev mob kom tau cov khoom 2-bromo-3-methoxypyridine.

2. Los ntawm cov tshuaj tiv thaiv ntawm pyridine thiab 2-Bromo methyl ether: pyridine thiab 2-Bromo methyl ether cov tshuaj tiv thaiv, nyob rau hauv qhov tsim nyog rau cua sov los yog siv lub catalyst los tsim cov khoom xav tau.

 

Cov ntaub ntawv kev nyab xeeb:

Kev ruaj ntseg ntawm 2-bromo-3-methoxypyridine xav tau kev saib xyuas. Cov hauv qab no yog qee cov lus qhia txog kev ruaj ntseg:

-Tsis txhob nqus pa, tiv nrog daim tawv nqaij, lossis nkag rau qhov muag. Hnav cov khoom tiv thaiv tsim nyog xws li hnab looj tes, tsom iav thiab daim npog ntsej muag thaum siv.

-Thaum khaws cia, nws yuav tsum tau muab tso rau hauv qhov chaw muaj cua zoo, kom deb ntawm cov hluav taws kub thiab oxidizing cov neeg ua haujlwm.

-Nyeem cov ntaub ntawv tiv thaiv kev nyab xeeb kom zoo ua ntej siv thiab siv raws li cov txheej txheem khiav haujlwm raug.

 


  • Yav dhau los:
  • Tom ntej:

  • Sau koj cov lus ntawm no thiab xa tuaj rau peb