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CAS No.: | 15862-18-7 |
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Name: | 5,5'-Dibromo-2,2'-bipyridyl |
Article Data: | 41 |
Molecular Structure: | |
Formula: | C10H6 Br2 N2 |
Molecular Weight: | 313.979 |
Synonyms: | 5,5'-Dibromo-2,2'-bipyridine |
Density: | 1.809g/cm3 |
Melting Point: | 225.0 to 229.0 °C |
Boiling Point: | 357.7°Cat760mmHg |
Flash Point: | 170.1°C |
Safety: | 24/25 |
PSA: | 25.78000 |
LogP: | 3.66860 |
[2,2]bipyridinyl
5,5'-dibromo-2,2'-dipyridyl
Conditions | Yield |
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With bromine at 150℃; for 15h; | 86% |
With bromine at 150℃; under 1140.08 Torr; for 15h; | 86% |
Stage #1: [2,2]bipyridinyl With Acetyl bromide In methanol at 0 - 20℃; for 0.5h; Inert atmosphere; Stage #2: With bromine at 185℃; for 72h; Inert atmosphere; Stage #3: With ethylene diamine tetraacetic acid tetrasodium salt; sodium hydroxide; sodium sulfite In dichloromethane; water at 20℃; for 2h; Inert atmosphere; | 39% |
2,2'-bipyridine dihydrochloride
5,5'-dibromo-2,2'-dipyridyl
Conditions | Yield |
---|---|
With bromine for 72h; Heating; Autoclave; | 85% |
2,5-dibromopyridine
5,5'-dibromo-2,2'-dipyridyl
Conditions | Yield |
---|---|
With hexamethyldistannane; tetrakis(triphenylphosphine) palladium(0) In benzene for 65h; Heating; | 80% |
With tetrakis(triphenylphosphine) palladium(0); hexamethyldistannane In benzene for 72h; Heating; | 80% |
With tetrakis(triphenylphosphine) palladium(0); bis(tri-n-butyltin) In m-xylene at 130℃; for 72h; Darkness; | 80% |
2,6-diiodo-pyridine
5-bromo-2-(tri-n-butylstannyl)pyridine
A
5,5'-dibromo-2,2'-dipyridyl
B
5,5''-dibromo-2,2',6',2''-terpyridine
Conditions | Yield |
---|---|
With triphenyl phosphite; palladium(II) acetylacetonate In 5,5-dimethyl-1,3-cyclohexadiene at 140℃; for 3h; Stille coupling; Inert atmosphere; | A 6 %Spectr. B 80% |
2-iodo-5-bromopyridine
5-bromo-2-(tri-n-butylstannyl)pyridine
5,5'-dibromo-2,2'-dipyridyl
Conditions | Yield |
---|---|
With triphenyl phosphite; palladium(II) acetylacetonate In 5,5-dimethyl-1,3-cyclohexadiene at 140℃; for 5h; Stille coupling; Inert atmosphere; | 80% |
2-iodo-5-bromopyridine
5,5'-dibromo-2,2'-dipyridyl
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0); bis(tri-n-butyltin) In toluene at 125℃; for 72h; Sonogashira coupling; | 74% |
With tetrakis(triphenylphosphine) palladium(0); bis(tri-n-butyltin) In toluene for 120h; Reflux; | 74% |
Stille Cross-Coupling (Migita-Kosugi-Stille Coupling); | 69% |
5,5'-(2,2'-bipyridine)diacid chloride
5,5'-dibromo-2,2'-dipyridyl
Conditions | Yield |
---|---|
With 2,2'-azobis(isobutyronitrile); Bromotrichloromethane; 2-mercaptopyridine-1-oxide sodium salt at 100℃; for 20h; Irradiation; | 1.09 g |
A
5-bromo-2,2'-bipyridyl
B
5,5'-dibromo-2,2'-dipyridyl
Conditions | Yield |
---|---|
With carbon dioxide; bromine at 250℃; |
2,6-Dibromopyridine
5-bromo-2-(tri-n-butylstannyl)pyridine
A
5,5'-dibromo-2,2'-dipyridyl
B
C10H6Br2N2
C
5,5''-dibromo-2,2',6',2''-terpyridine
Conditions | Yield |
---|---|
With triphenyl phosphite; palladium(II) acetylacetonate In toluene at 120℃; for 7h; Stille coupling; Inert atmosphere; | A 5 %Spectr. B 7 %Spectr. C 87 %Spectr. |
2,5-dibromopyridine
5-bromo-2-(tri-n-butylstannyl)pyridine
5,5'-dibromo-2,2'-dipyridyl
Conditions | Yield |
---|---|
With triphenyl phosphite; palladium(II) acetylacetonate In 5,5-dimethyl-1,3-cyclohexadiene at 140℃; for 6h; Stille coupling; Inert atmosphere; |