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3,5-Dibromopyridine

3,5-Dibromopyridine ??? ???
?? ??:
625-92-3
???:
3,5-Dibromopyridine
???(??):
NSC 6209;3,5-Dibrompyridin;IFLAB-BB F1995-0190;3,5-DIBROMOPYRIDINE;3,5-dibormopyridine;TIMTEC-BB SBB003237;Pyridine, 3,5-dibromo-;3,5-Dibromopyridine>Perampanel Impurity 12;3,5-Dibromopyridine,99%
CBNumber:
CB1333488
???:
C5H3Br2N
??? ??:
236.89
MOL ??:
625-92-3.mol
MSDS ??:
SDS

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)
NIST
3,5-Dibromopyridine(625-92-3)
EPA
3,5-Dibromopyridine (625-92-3)
??
  • ?? ? ?? ??
  • ?? ? ???? ?? (GHS)
??? ?? Xi,Xn
?? ???? ?? 36/37/38-20/21/22
????? 26-36-36/37/39
????(UN No.) UN2811
WGK ?? 3
?? ?? IRRITANT
HS ?? 29333999
????(GHS): GHS hazard pictograms
?? ?: Warning
??·?? ??:
?? ??·?? ?? ?? ?? ?? ?? ? ?? ?? P- ??
H315 ??? ??? ??? ????? ?? ????? ?? 2 ?? GHS hazard pictograms P264, P280, P302+P352, P321,P332+P313, P362
H319 ?? ?? ??? ??? ?? ? ?? ?? ??? ?? ?? 2A ?? GHS hazard pictograms P264, P280, P305+P351+P338,P337+P313P
??????:
P264 ?? ??? ?? ??? ????.
P264 ?? ??? ?? ??? ????.
P280 ????/???/???/?????? ?????.
P302+P352 ??? ??? ??? ?? ????.
P305+P351+P338 ?? ??? ? ?? ?? ???? ????. ???? ?????? ?????. ?? ????.
P332+P313 ?? ??? ??? ???? ??· ??? ????.
P337+P313 ?? ?? ??? ???? ???? ??· ??? ????.
NFPA 704
0
2 0

3,5-Dibromopyridine MSDS


3,5-Dibromopyridine

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].

?? ??

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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3,5-Dibromopyridine ?? ??

???( 605)?? ??
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3,5-Dibromopyridine ?? ??:

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