3,5-Dibromopyridine
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3,5-Dibromopyridine ??
- ???
- 110-115 °C (lit.)
- ?? ?
- 222 °C
- ??
- 2.0383 (rough estimate)
- ???
- 1.5800 (estimate)
- ?? ??
- Inert atmosphere,Room Temperature
- ???
- DMSO(?? ???, ??), ???(?? ???)
- ?? ?? (pKa)
- 0.52±0.20(Predicted)
- ??? ??
- ?? ?? ??
- ??
- ??~?? ???
- ???
- ?????? ???? ?????. ?? ???.
- BRN
- 108477
- InChIKey
- SOSPMXMEOFGPIM-UHFFFAOYSA-N
- CAS ??????
- 625-92-3(CAS DataBase Reference)
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- ?? ? ?? ??
- ?? ? ???? ?? (GHS)
??? ?? | Xi,Xn | ||
---|---|---|---|
?? ???? ?? | 36/37/38-20/21/22 | ||
????? | 26-36-36/37/39 | ||
????(UN No.) | UN2811 | ||
WGK ?? | 3 | ||
?? ?? | IRRITANT | ||
HS ?? | 29333999 |
3,5-Dibromopyridine C??? ??, ??, ??
??? ??
Light-Yellow Solid??
3-Acetylamino-5-ethoxypyridine was prepared by converting 3, 5-dibromopyridine with sodium ethylate into 3-bromo-5-ethoxypyridine, allowing this substance to interact with ammonia and acetylating the aminoethoxypyridine thus formed with acetic anhydride. Lithiation of 3, 5-dibromopyridine with LDA and subsequent reaction with electrophiles provided 4-alkyl-3, 5-dibromopyridines 2 in high yield. Ligand was prepared by a Pd(0)-catalyzed cross-coupling reaction of 3,5-dibromopyridine and 5-tributylstannyl-3,3?-bipyridine. The synthesis of 3, 5-bis (2-indolyl) pyridine and 3-[(2-indolyl)-5-phenyl] pyridine derivatives as includes Stille or Suzuki type reactions, which were realized on the 3,5-dibromopyridine.?? ??
3,5-Dibromopyridine (3,5-DBP) can be used for:(1) Spectroscopic analysis: FTIR and FT Raman spectra in the solid phase of 3,5-DBP and 3,5- dichloro-2,4,6-trifluoropyridine (3,5-DCTFP) were recorded in the regions of 4000-400 cm-1 and 3500-100 cm-1, respectively[1].
(2) Chemical reactions: 3,5-DBP can be reacted with phenyl isocyanate. chemoselective Staudinger-Phosphite reaction of 2,4,6-triazido-3,5-dibromopyridine azide moiety[2-3].
(3) Organic synthesis: Using 3,5-dibromopyridine as raw material can be used to prepare 3-acetamido-5-ethoxypyridine[4].
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3,5-Dibromopyridine undergoes lithiation with lithium diisopropylamide and on subsequent reaction with electrophiles yields 4-alkyl-3,5-dibromopyridines.3,5-Dibromopyridine ?? ?? ? ???
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?? ??
5-Bromo-2-fluoro-3-methoxypyridine
5-(????)???-3-??
3-Amino-5-hydroxypyridine
5-??????-3-??
3-(BENZYLOXY)-5-BROMOPYRIDINE
5-Bromopyridine-3-boronic acid
3-Amino-5-bromopyridine
3-Bromo-5-fluoropyridine
5-METHOXY-PYRIDINE-3-CARBALDEHYDE
3-BROMO-5-(METHYLTHIO)PYRIDINE
2-(5-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)pyridin-3-yl)propan-2-ol
4,6-Di(4-carboxyphenyl)pyrimidine
3-BroMo-5-(???-1-?-2-?)???
3,5-?????-4-???????????
3,5-????-4-??????
3,5-DIBROMOPYRIDINE 1-OXIDE
5-BROMO-3-METHOXY-2-NITROPYRIDINE
3,5-Dimethoxypyridine
3,5-Dibromopyridine ?? ??
???( 605)?? ??
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3,5-Dibromopyridine ?? ??:
2,2-??(?????)-1,3-????? 3-?????? 1,3-?????-5,5-????????? 2,3-??????? ? 2,5-???????
2-Chloro-3-cyanopyridine
2,5-DIBROMOPYRIDINE 2,5-DIBROMOPYRIDINE,2,5-DIBROMOPYRIDINE
1,2-Dibromopropane
2,4-DIBROMOPENTANE
2-PHENYL-1,3,2-DIOXABORINANE
PeraMpanel
PeraMpanel
6'-Methoxy-2,3'-bipyridine
PeraMpanel
PeraMpanel
PeraMpanel
2-Cyanophenylboronic acid
Phenylboronic acid