Product Name

  • Name

    2-Bromobutyryl bromide

  • EINECS 247-441-7
  • CAS No. 26074-52-2
  • Density 1.941 g/cm3
  • Solubility
  • Melting Point
  • Formula C4H6Br2O
  • Boiling Point 176.3 °C at 760 mmHg
  • Molecular Weight 229.899
  • Flash Point 66.263 °C
  • Transport Information UN 3265 8/PG 2
  • Appearance
  • Safety 26-36/37/39-45
  • Risk Codes 34-36/37
  • Molecular Structure Molecular Structure of 26074-52-2 (2-Bromobutyryl bromide)
  • Hazard Symbols CorrosiveC
  • Synonyms Butyrylbromide, 2-bromo- (6CI,8CI);2-Bromobutanoyl bromide;a-Bromobutyryl bromide;
  • PSA 17.07000
  • LogP 2.08140

Synthetic route

butyryl bromide
5856-82-6

butyryl bromide

2-bromo-butyryl bromide
26074-52-2

2-bromo-butyryl bromide

Conditions
ConditionsYield
With bromine at 100℃;
butanoic acid methyl ester
623-42-7

butanoic acid methyl ester

2-bromo-butyryl bromide
26074-52-2

2-bromo-butyryl bromide

Conditions
ConditionsYield
With phosphorus; bromine
butyric acid
107-92-6

butyric acid

2-bromo-butyryl bromide
26074-52-2

2-bromo-butyryl bromide

Conditions
ConditionsYield
With phosphorus; bromine at 100℃;
With phosphorus; bromine; sodium hydroxide at 110℃; Hell-Vollard-Zelinsky halogenation; regioselective reaction;
bromine
7726-95-6

bromine

butanoic acid ethyl ester
105-54-4

butanoic acid ethyl ester

red phosphorus

red phosphorus

A

ethyl bromide
74-96-4

ethyl bromide

B

2-bromo-butyryl bromide
26074-52-2

2-bromo-butyryl bromide

2-bromo-butyryl bromide
26074-52-2

2-bromo-butyryl bromide

(2,2-Bis-phenylsulfanyl-vinyl)-((S)-1-phenyl-ethyl)-amine
157734-48-0

(2,2-Bis-phenylsulfanyl-vinyl)-((S)-1-phenyl-ethyl)-amine

2-bromo-N-<(S)-1-phenylethyl>-N-<2,2-bis(phenylthio)ethenyl>butanamide

2-bromo-N-<(S)-1-phenylethyl>-N-<2,2-bis(phenylthio)ethenyl>butanamide

Conditions
ConditionsYield
With N,N-diethylaniline In benzene Heating;100%
2-bromo-butyryl bromide
26074-52-2

2-bromo-butyryl bromide

N,N'-diisopropyl selenourea
13120-10-0

N,N'-diisopropyl selenourea

5-ethyl-3-isopropyl-2-isopropylimino-1,3-selenazolidin-4-one

5-ethyl-3-isopropyl-2-isopropylimino-1,3-selenazolidin-4-one

Conditions
ConditionsYield
With pyridine In tetrahydrofuran at 0℃;100%
2-bromo-butyryl bromide
26074-52-2

2-bromo-butyryl bromide

O-3-(2-furyl)propylhydroxylamine
138718-06-6

O-3-(2-furyl)propylhydroxylamine

(±)-1-[O-(3-(2-furyl)propyl)oxyamino]-2-bromo-1-butanone
1451012-86-4

(±)-1-[O-(3-(2-furyl)propyl)oxyamino]-2-bromo-1-butanone

Conditions
ConditionsYield
With triethylamine In dichloromethane for 0.5h; Inert atmosphere;100%
2-bromo-butyryl bromide
26074-52-2

2-bromo-butyryl bromide

Diethyl methylmalonate
609-08-5

Diethyl methylmalonate

C12H19BrO5

C12H19BrO5

Conditions
ConditionsYield
Stage #1: Diethyl methylmalonate With sodium hydride In tetrahydrofuran; mineral oil at 0 - 20℃; for 1.33333h; Inert atmosphere;
Stage #2: 2-bromo-butyryl bromide In tetrahydrofuran; mineral oil at 0 - 20℃; for 17h; Inert atmosphere;
100%
2-bromo-butyryl bromide
26074-52-2

2-bromo-butyryl bromide

3,5-dimethylaminoaniline
108-69-0

3,5-dimethylaminoaniline

2-bromo-N-(3,5-dimethylphenyl)butanamide

2-bromo-N-(3,5-dimethylphenyl)butanamide

Conditions
ConditionsYield
With triethylamine In dichloromethane at 0 - 20℃;100%
fluorobenzene
462-06-6

fluorobenzene

2-bromo-butyryl bromide
26074-52-2

2-bromo-butyryl bromide

2-bromo-1-(4-fluorophenyl)-1-butanone

2-bromo-1-(4-fluorophenyl)-1-butanone

Conditions
ConditionsYield
With aluminum (III) chloride In dichloromethane for 2h; Inert atmosphere; Cooling with ice;100%
With aluminum (III) chloride In dichloromethane for 2.3h; Cooling with ice; Inert atmosphere;100%
With aluminum (III) chloride In dichloromethane for 2.33333h; Inert atmosphere; Cooling with ice;100%
2-bromo-butyryl bromide
26074-52-2

2-bromo-butyryl bromide

β-naphthol
135-19-3

β-naphthol

2-bromo-butyric acid-[2]naphthyl ester
40491-84-7

2-bromo-butyric acid-[2]naphthyl ester

Conditions
ConditionsYield
copper; copper dichloride for 0.025h; Alkylation; Irradiation;99%
2-bromo-butyryl bromide
26074-52-2

2-bromo-butyryl bromide

5-(4-bromophenyl)-6H-1,3,4-thiadiazin-2-amine

5-(4-bromophenyl)-6H-1,3,4-thiadiazin-2-amine

C13H13Br2N3OS
1064666-89-2

C13H13Br2N3OS

Conditions
ConditionsYield
With pyridine In acetonitrile at 20℃;98%
2-bromo-butyryl bromide
26074-52-2

2-bromo-butyryl bromide

2-bromoaniline
615-36-1

2-bromoaniline

2-bromo-N-(2-bromophenyl)-butyramide
1037586-23-4

2-bromo-N-(2-bromophenyl)-butyramide

Conditions
ConditionsYield
With sodium hydroxide In water; toluene at 20℃; Inert atmosphere;98%
2-bromo-butyryl bromide
26074-52-2

2-bromo-butyryl bromide

O-[o-(2-furyl)phenyl]methylhydroxylamine
1451012-80-8

O-[o-(2-furyl)phenyl]methylhydroxylamine

(±)-1-{O-([o-(2-furyl)phenyl]methyl)oxyamino}-2-bromo-1-butanone
1451012-93-3

(±)-1-{O-([o-(2-furyl)phenyl]methyl)oxyamino}-2-bromo-1-butanone

Conditions
ConditionsYield
With triethylamine In dichloromethane for 0.5h; Inert atmosphere;98%
2-bromo-butyryl bromide
26074-52-2

2-bromo-butyryl bromide

Cyclohexyl-[2,2-diphenyl-eth-(E)-ylidene]-amine
30857-76-2

Cyclohexyl-[2,2-diphenyl-eth-(E)-ylidene]-amine

2-Bromo-N-cyclohexyl-N-(2,2-diphenyl-vinyl)-butyramide
134987-75-0

2-Bromo-N-cyclohexyl-N-(2,2-diphenyl-vinyl)-butyramide

Conditions
ConditionsYield
With pyridine In benzene 1) 30 min, 2) r.t., 16h;97%
2-bromo-butyryl bromide
26074-52-2

2-bromo-butyryl bromide

benzyl alcohol
100-51-6

benzyl alcohol

2-bromobutyric acid benzyl ester
42115-51-5

2-bromobutyric acid benzyl ester

Conditions
ConditionsYield
With pyridine In tetrahydrofuran at 0℃; Schlenk technique; Inert atmosphere;96%
2-bromo-butyryl bromide
26074-52-2

2-bromo-butyryl bromide

(4R)-phenyl-2-oxazolidinone
90319-52-1

(4R)-phenyl-2-oxazolidinone

(4'R)-2-bromo-1-(2'-oxo-4'-phenyloxazolidin-3'-yl)butan-1-one
369624-75-9

(4'R)-2-bromo-1-(2'-oxo-4'-phenyloxazolidin-3'-yl)butan-1-one

Conditions
ConditionsYield
With sodium hydride In tetrahydrofuran at -78℃; for 1.5h;95%
dimethylenecyclourethane
497-25-6

dimethylenecyclourethane

2-bromo-butyryl bromide
26074-52-2

2-bromo-butyryl bromide

3-(2-Bromo-butyryl)-oxazolidin-2-one
189103-39-7

3-(2-Bromo-butyryl)-oxazolidin-2-one

Conditions
ConditionsYield
Stage #1: dimethylenecyclourethane With n-butyllithium In tetrahydrofuran at -78℃; for 0.5h;
Stage #2: 2-bromo-butyryl bromide In tetrahydrofuran at -78℃; for 3h; Further stages.;
95%
2-bromo-butyryl bromide
26074-52-2

2-bromo-butyryl bromide

(RS)-methyl mandelate
4358-87-6

(RS)-methyl mandelate

2-Bromo-butyric acid methoxycarbonyl-phenyl-methyl ester

2-Bromo-butyric acid methoxycarbonyl-phenyl-methyl ester

Conditions
ConditionsYield
With pyridine In diethyl ether at 0℃;94%
2-bromo-butyryl bromide
26074-52-2

2-bromo-butyryl bromide

(S)-(-)-1-(Cyanomethyl)-1,2,3,4-tetrahydroisoquinoline
131793-05-0

(S)-(-)-1-(Cyanomethyl)-1,2,3,4-tetrahydroisoquinoline

[(S)-2-(2-Bromo-butyryl)-1,2,3,4-tetrahydro-isoquinolin-1-yl]-acetonitrile
131793-02-7, 131793-09-4

[(S)-2-(2-Bromo-butyryl)-1,2,3,4-tetrahydro-isoquinolin-1-yl]-acetonitrile

Conditions
ConditionsYield
With diethyl-pyridin-4-yl-amine; triethylamine In dichloromethane at 0℃;91.4%
2-bromo-butyryl bromide
26074-52-2

2-bromo-butyryl bromide

anthranilic acid nitrile
1885-29-6

anthranilic acid nitrile

N-(α-bromobutyryl)-2-cyanoanilide
88629-04-3

N-(α-bromobutyryl)-2-cyanoanilide

Conditions
ConditionsYield
With potassium carbonate In dichloromethane at 0 - 20℃;91%
With potassium carbonate In dichloromethane; water Ambient temperature;74%
2-bromo-butyryl bromide
26074-52-2

2-bromo-butyryl bromide

N-methylaniline
100-61-8

N-methylaniline

2-bromo-N-methyl-N-phenylbutanamide
116496-46-9

2-bromo-N-methyl-N-phenylbutanamide

Conditions
ConditionsYield
Stage #1: N-methylaniline With triethylamine In tetrahydrofuran at 0℃; for 0.0833333h; Inert atmosphere;
Stage #2: 2-bromo-butyryl bromide In tetrahydrofuran at 0℃; for 0.166667h; Inert atmosphere;
90%
Stage #1: N-methylaniline With triethylamine In tetrahydrofuran at 0℃; for 0.0833333h; Inert atmosphere;
Stage #2: 2-bromo-butyryl bromide In tetrahydrofuran at 0℃; for 0.166667h; Inert atmosphere;
73%
With diethyl ether
2-bromo-butyryl bromide
26074-52-2

2-bromo-butyryl bromide

silver(I) dimesylamide
30488-11-0

silver(I) dimesylamide

N-(2-Brombutyryl)-dimesylamin

N-(2-Brombutyryl)-dimesylamin

Conditions
ConditionsYield
In acetonitrile for 14h; Ambient temperature;90%
2-bromo-butyryl bromide
26074-52-2

2-bromo-butyryl bromide

4-Methoxybenzyl alcohol
105-13-5

4-Methoxybenzyl alcohol

4-methoxybenzyl 2-bromobutanoate

4-methoxybenzyl 2-bromobutanoate

Conditions
ConditionsYield
With pyridine In acetonitrile at 0℃; for 0.5h; Inert atmosphere; Schlenk technique;90%
2-bromo-butyryl bromide
26074-52-2

2-bromo-butyryl bromide

2-[(methoxyimino)methyl]phenol
61042-20-4, 93249-65-1

2-[(methoxyimino)methyl]phenol

2-{[(methoxy)imino]methyl}phenyl 2-bromobutanoate

2-{[(methoxy)imino]methyl}phenyl 2-bromobutanoate

Conditions
ConditionsYield
With triethylamine In dichloromethane at 0℃;89%
2-bromo-butyryl bromide
26074-52-2

2-bromo-butyryl bromide

((S)-9-Methoxymethyl-2,3,4,9-tetrahydro-1H-β-carbolin-1-yl)-acetonitrile
131831-92-0

((S)-9-Methoxymethyl-2,3,4,9-tetrahydro-1H-β-carbolin-1-yl)-acetonitrile

[(S)-2-(2-Bromo-butyryl)-9-methoxymethyl-2,3,4,9-tetrahydro-1H-β-carbolin-1-yl]-acetonitrile
131792-89-7, 131831-93-1

[(S)-2-(2-Bromo-butyryl)-9-methoxymethyl-2,3,4,9-tetrahydro-1H-β-carbolin-1-yl]-acetonitrile

Conditions
ConditionsYield
With dmap; triethylamine In dichloromethane at 0℃; for 0.5h;88.8%
2-bromo-butyryl bromide
26074-52-2

2-bromo-butyryl bromide

((S)-9-Methoxymethyl-2,3,4,9-tetrahydro-1H-β-carbolin-1-yl)-acetonitrile
131831-92-0

((S)-9-Methoxymethyl-2,3,4,9-tetrahydro-1H-β-carbolin-1-yl)-acetonitrile

(S)-2-Amino-3-ethyl-12-methoxymethyl-6,7,12,12b-tetrahydro-1H-indolo[2,3-a]quinolizin-4-one
131792-90-0

(S)-2-Amino-3-ethyl-12-methoxymethyl-6,7,12,12b-tetrahydro-1H-indolo[2,3-a]quinolizin-4-one

Conditions
ConditionsYield
With silver; zinc88%
2-bromo-butyryl bromide
26074-52-2

2-bromo-butyryl bromide

4-(N-methyl)amino-3-methylcarbamoylisothiazole
115106-43-9

4-(N-methyl)amino-3-methylcarbamoylisothiazole

4-[(2-Bromo-butyryl)-methyl-amino]-isothiazole-3-carboxylic acid methylamide
119452-20-9

4-[(2-Bromo-butyryl)-methyl-amino]-isothiazole-3-carboxylic acid methylamide

Conditions
ConditionsYield
With potassium carbonate In dichloromethane for 0.0333333h;88%
2-bromo-butyryl bromide
26074-52-2

2-bromo-butyryl bromide

2-amino-5-(4-methylphenyl)-6H-1,3,4-thiazine

2-amino-5-(4-methylphenyl)-6H-1,3,4-thiazine

C14H16BrN3OS
1064666-88-1

C14H16BrN3OS

Conditions
ConditionsYield
With pyridine In acetonitrile at 20℃;88%
2-bromo-butyryl bromide
26074-52-2

2-bromo-butyryl bromide

α-naphthol
90-15-3

α-naphthol

2-bromo-butyric acid-[1]naphthyl ester
219749-59-4

2-bromo-butyric acid-[1]naphthyl ester

Conditions
ConditionsYield
copper; copper dichloride for 0.025h; Alkylation; Irradiation;87%
2-bromo-butyryl bromide
26074-52-2

2-bromo-butyryl bromide

4-bromobenzenemethanol
873-75-6

4-bromobenzenemethanol

C11H12Br2O2
1610949-18-2

C11H12Br2O2

Conditions
ConditionsYield
With triethylamine In dichloromethane at 20℃; for 16h; Inert atmosphere; Schlenk technique;87%
2-bromo-butyryl bromide
26074-52-2

2-bromo-butyryl bromide

4-methylamino-3-methylcarbamoylisoselenazole
119452-15-2

4-methylamino-3-methylcarbamoylisoselenazole

4-[(2-Bromo-butyryl)-methyl-amino]-isoselenazole-3-carboxylic acid methylamide
119452-18-5

4-[(2-Bromo-butyryl)-methyl-amino]-isoselenazole-3-carboxylic acid methylamide

Conditions
ConditionsYield
With potassium carbonate In dichloromethane for 0.0333333h;86%

2-Bromobutyryl Bromide Chemical Properties

Chemistry informtion about 2-Bromobutyryl Bromide (CAS NO.26074-52-2) is:
IUPAC Name: 2-Bromobutyryl Bromide
Synonyms: Alpha-Bromobutyryl Bromide ; A-Bromo-N-Butyryl Bromide ; 2-Bromobutyryl Bromide ; 2-Bromo-N-Butyryl Bromide ; Bromobutyrylbromide ; 2-Bromobutyryl Bromide, Tech., 90% ; 2-Bromo-N-Butyryl Bromide (Alpha-) 95+%
MF: C4H6Br2O
MW: 229.9
EINECS: 247-441-7 
Density: 1.941 g/cm3
Flash Point: 66.3 °C
Boiling Point: 176.3 °C at 760 mmHg
Vapour Pressure: 1.1 mmHg at 25°C
Enthalpy of Vaporization: 41.27 kJ/mol
Refractive Index: n20/D 1.512(lit.)
Following is the molecular structure of  2-Bromobutyryl Bromide (CAS NO.26074-52-2) is:

2-Bromobutyryl Bromide Safety Profile

Hazard Codes:
C: Corrosive
Risk Statements:
R34:Causes burns.  
R36/37:Irritating to eyes and respiratory system.
Safety Statements:
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.  
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
RIDADR: UN 3265 8/PG 2
WGK Germany: 3
F:
F 19: Lachrymator.
F 21: Sensitive to humidity.
HazardClass: 8
PackingGroup: III

2-Bromobutyryl Bromide Specification

 2-Bromobutyryl Bromide (CAS NO.26074-52-2) is a colorless or yellowish liquid.

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