1,4-Dibromopentane supplier

Name
1,4-Dibromopentane
EINECS 210-967-2
CAS No. 626-87-9
Article Data16
CAS DataBase
Density 1.687
Solubility Insoluble in water.
Melting Point ?34.4 °C(lit.)
Formula C5H10 Br2
Boiling Point 98-99 °C25 mm Hg(lit.)
Molecular Weight 229.942
Flash Point 110 ºC
Transport Information
Appearance clear, colorless to pale yellow liquid.
Safety 26-36-37/39
Risk Codes R22;R36/38
Molecular Structure
Hazard Symbols
Synonyms (RS)-1,4-Dibromopentane;1,4-Dibromopentane; 2,5-Dibromopentane; NSC 8753
PSA 0.00000
LogP 2.94490

Synthetic route

: 96-47-9
2-methyltetrahydrofuran

A: 626-87-9
1,4-dibromopentane

B: C5H12BrO3P

Conditions

Conditions	Yield
With hydrogen bromide; phosphorus tribromide at 30℃; for 0.666667h;	A 34% B 43%

: 96-47-9
2-methyltetrahydrofuran

: 626-87-9
1,4-dibromopentane

Conditions

Conditions	Yield
With sulfuric acid; hydrogen bromide
With aluminum tri-bromide
With phosphorus tribromide
With hydrogen bromide

: 626-95-9
1,4-Pentanediol

: 626-87-9
1,4-dibromopentane

Conditions

Conditions	Yield
With hydrogen bromide
With hydrogen bromide; calcium chloride
With hydrogen bromide Heating;

: 821-09-0
n-Pent-4-enyl alcohol

: 626-87-9
1,4-dibromopentane

Conditions

Conditions	Yield
With hydrogen bromide at 100 - 110℃;

: 598-61-8
methyl-cyclobutane

: 626-87-9
1,4-dibromopentane

Conditions

Conditions	Yield
With bromine im direkten Sonnenlicht;

: 534-22-5
2-methylfuran

: 626-87-9
1,4-dibromopentane

Conditions

Conditions	Yield
(i) H2, (ii) aq. HBr; Multistep reaction;

: 1191-96-4
ethylcyclopropane

: 626-87-9
1,4-dibromopentane

Conditions

Conditions	Yield
With bromine In dichloromethane

: 18423-18-2
5-methoxy-2-pentanol

: 626-87-9
1,4-dibromopentane

Conditions

Conditions	Yield
With hydrogen bromide

: 96-47-9
2-methyltetrahydrofuran

: 10035-10-6, 12258-64-9
hydrogen bromide

: 626-87-9
1,4-dibromopentane

γ-pentylene oxide: γ-pentylene oxide

: 626-87-9
1,4-dibromopentane

Conditions

Conditions	Yield
With hydrogen bromide at 100℃;

<α-bromo-ethyl>-cyclopropane: <α-bromo-ethyl>-cyclopropane

: 626-87-9
1,4-dibromopentane

Conditions

Conditions	Yield
With hydrogen bromide

: 626-95-9
1,4-Pentanediol

: 10035-10-6, 12258-64-9
hydrogen bromide

: 626-87-9
1,4-dibromopentane

Conditions

Conditions	Yield
at 100℃;

: 626-95-9
1,4-Pentanediol

: 7732-18-5
water

: 10035-10-6, 12258-64-9
hydrogen bromide

: 626-87-9
1,4-dibromopentane

...Expand

: 598-61-8
methyl-cyclobutane

: 7726-95-6
bromine

: 626-87-9
1,4-dibromopentane

Conditions

Conditions	Yield
im direkten Sonnenlicht;

: 17429-04-8
5-methoxy-2-pentanone

: 626-87-9
1,4-dibromopentane

Conditions

Conditions	Yield
Multi-step reaction with 2 steps 1: Na, H2O / diethyl ether 2: HBr View Scheme

: 463-04-7
n-Amyl nitrite

: 626-87-9
1,4-dibromopentane

Conditions

Conditions	Yield
Multi-step reaction with 3 steps 1: (i) benzene, (ii) aq. HCl 2: NaBH4, aq. NaOH / methanol 3: HBr, CaCl2 View Scheme

: 1071-73-4
5-Hydroxy-2-pentanone

: 626-87-9
1,4-dibromopentane

Conditions

Conditions	Yield
Multi-step reaction with 2 steps 1: NaBH4, aq. NaOH / methanol 2: HBr, CaCl2 View Scheme

: 90647-46-4
ethyl 2-acetyl-4-methoxybutanoate

: 626-87-9
1,4-dibromopentane

Conditions

Conditions	Yield
Multi-step reaction with 3 steps 1: (i) NaOH, (ii) H2SO4 2: Na, H2O / diethyl ether 3: HBr View Scheme

: 180593-41-3
tert-butyl (4-hydroxyphenyl)(methyl)carbamate

A: [4-(5-Bromo-pentyloxy)-phenyl]-methyl-carbamic acid tert-butyl ester

B: 626-87-9
1,4-dibromopentane

: 1074-82-4
potassium phtalimide

: 626-87-9
1,4-dibromopentane

: 59353-62-7
4-bromo-1-phthalimidopentane

Conditions

Conditions	Yield
In 1,1,1-trichloroethane at 60℃; for 24h;	100%
In acetone for 24h; Reflux;	99%
In acetone for 72h; Reflux;	91%

: 56069-39-7
diethyl phenylsulfonylmethylphosphonate

: 626-87-9
1,4-dibromopentane

: (1-Benzenesulfonyl-2-methyl-cyclopentyl)-phosphonic acid diethyl ester

Conditions

Conditions	Yield
With sodium hydroxide; trimethyldodecylammonium chloride In water for 20h; Ambient temperature;	95%

: 626-87-9
1,4-dibromopentane

: 1795-09-1
2-methylthiolane

Conditions

Conditions	Yield
With sodium sulfide In dimethyl sulfoxide at 150℃; for 0.25h;	94.1%
With sodium sulfide; ethanol
With sodium sulfide; ethanol
With sodium sulfide; water

: 626-87-9
1,4-dibromopentane

: 99595-69-4
1,4-bis(azido)pentane

Conditions

Conditions	Yield
With sodium azide In N,N-dimethyl-formamide at 60℃; for 24h;	93%
With sodium azide In water at 120℃; for 0.5h; microwave irradiation;	82%
With methanol; sodium azide

: 626-87-9
1,4-dibromopentane

: 141884-09-5
1-Iodo-4-bromopentane

Conditions

Conditions	Yield
With sodium iodide In acetone Ambient temperature;	93%

: 4623-24-9
2-(3-aminophenyl)acetonitrile

: 626-87-9
1,4-dibromopentane

: 2-(3-(2-methylpyrrolidin-1-yl)phenyl)acetonitrile

Conditions

Conditions	Yield
With N-ethyl-N,N-diisopropylamine In toluene for 20h; Reflux;	93%

: 288-13-1
NH-pyrazole

: 626-87-9
1,4-dibromopentane

: (+/-)-5-methyl-5,6,7,8-tetrahydropyrazolo[1,2-a]pyridazin-4-ium bromide

Conditions

Conditions	Yield
With sodium hydride In 1,4-dioxane for 16h; Heating;	92%

: 3544-25-0
p-aminophenylacetonitrile

: 626-87-9
1,4-dibromopentane

: (x)BrH*C13H16N2

Conditions

Conditions	Yield
With N-ethyl-N,N-diisopropylamine In toluene for 20h; Reflux;	92%

: 3544-25-0
p-aminophenylacetonitrile

: 626-87-9
1,4-dibromopentane

: 2-(4-(2-methylpyrrolidin-1-yl)phenyl)acetonitrile

Conditions

Conditions	Yield
With N-ethyl-N,N-diisopropylamine In toluene for 20h; Reflux;	92%
With N-ethyl-N,N-diisopropylamine In toluene for 20h; Reflux;

: 626-87-9
1,4-dibromopentane

: 94-09-7
p-aminoethylbenzoate

: 4-(2-methylpyrrolidin-1-yl)benzoic acid ethyl ester

Conditions

Conditions	Yield
With potassium carbonate In water at 120℃; for 0.333333h; microwave irradiation;	89%

: 626-87-9
1,4-dibromopentane

: 75-50-3
trimethylamine

: (+/-)-(4-bromopentyl)trimethylammonium bromide

Conditions

Conditions	Yield
In diethyl ether; ethanol 1) 0 deg C, 1 h; 2) r.t., 3 days;	88%

: 626-87-9
1,4-dibromopentane

: 10387-40-3
potassium thioacetate

: 221218-83-3
4-bromopentyl thioacetate

Conditions

Conditions	Yield
In acetone for 21h; Ambient temperature;	88%

: 108-98-5
thiophenol

: 626-87-9
1,4-dibromopentane

: C17H20S2

Conditions

Conditions	Yield
With 2,2,6,6-tetramethyl-piperidine-N-oxyl; sodium hypochlorite; tetrabutyl-ammonium chloride; sodium hydrogencarbonate; potassium bromide In dichloromethane; water 0 deg C, 1 h, RT, 0.5 h;	87%

: 1379610-52-2
4,4,5,5‐tetramethyl‐2‐[5‐phenyl‐1‐(4,4,5,5‐tetramethyl‐1,3,2‐dioxaborolan‐2‐yl)propyl]‐1,3,2‐dioxaborolane

: 626-87-9
1,4-dibromopentane

: 2,2'-(7-bromo-1-phenyloctane-3,3-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane)

Conditions

Conditions	Yield
Stage #1: 4,4,5,5‐tetramethyl‐2‐[5‐phenyl‐1‐(4,4,5,5‐tetramethyl‐1,3,2‐dioxaborolan‐2‐yl)propyl]‐1,3,2‐dioxaborolane With 2,2,6,6-tetramethylpiperidinyl-lithium In tetrahydrofuran at 0℃; for 0.166667h; Sealed tube; Inert atmosphere; Stage #2: 1,4-dibromopentane In tetrahydrofuran at 0℃; for 0.25h; Sealed tube; Inert atmosphere;	86%

: 626-87-9
1,4-dibromopentane

: 62-53-3
aniline

: 33342-99-3, 160751-58-6, 160751-59-7
(+/-)-2-methyl-1-phenylpyrrolidine

Conditions

Conditions	Yield
With potassium carbonate In N,N-dimethyl-formamide at 20℃;	85%
With potassium carbonate In N,N-dimethyl-formamide at 80℃; for 6h; Inert atmosphere;	80%
With potassium carbonate In water at 120℃; for 0.333333h; microwave irradiation;	68%

: 7803-51-2
phosphan

: 626-87-9
1,4-dibromopentane

A: 128503-78-6
1,4-Bis-phosphanyl-pentane

B: 262593-97-5
methyl-2 phospholanne

Conditions

Conditions	Yield
With potassium hydroxide In dimethyl sulfoxide at 20℃; for 3h;	A 5% B 80%
With potassium hydroxide In dimethyl sulfoxide at 30℃; for 3h;	A 5% B 80%

...Expand

: 626-87-9
1,4-dibromopentane

: 73183-34-3
bis(pinacol)diborane

: 1382358-46-4
2-(4-bromopentyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

Conditions

Conditions	Yield
With tris-(dibenzylideneacetone)dipalladium(0); potassium phosphate monohydrate; di-tert-butyl(methyl)phosphonium tetrafluoroborate salt In water; tert-butyl alcohol at 60℃; Inert atmosphere;	79%
With tris-(dibenzylideneacetone)dipalladium(0); P(t-Bu)2Me*HBF4; sodium methylate In 1,4-dioxane at 25℃; for 24h; Inert atmosphere;	62%

: 109289-60-3
1-lithio-1-methylseleno-1-phenylethane

: 626-87-9
1,4-dibromopentane

: 2,7-(dimethylseleno)-2,7-diphenyl-3-methyloctane

Conditions

Conditions	Yield
	78%

: 626-87-9
1,4-dibromopentane

: 107-05-1
3-chloroprop-1-ene

: 76599-62-7
7-bromo-3-chloro-1-octene

Conditions

Conditions	Yield
With lithium diisopropyl amide In tetrahydrofuran at -78℃; for 15h;	78%

: 626-87-9
1,4-dibromopentane

: 145065-96-9
2-methylselenolan

Conditions

Conditions	Yield
With selenium; sodium tetrahydroborate In ethanol for 3h; Heating;	78%

: 2-amino-3-cyanobenzofuran-5-carboxylic acid methyl ester

: 626-87-9
1,4-dibromopentane

: methyl 3-cyano-2-(2-methylpyrrolidin-1-yl)benzofuran-5-carboxylate

Conditions

Conditions	Yield
With potassium carbonate In dimethyl sulfoxide at 120℃; for 0.0833333h;	78%

: 626-87-9
1,4-dibromopentane

: 105-53-3
diethyl malonate

: 5222-64-0
methyl-2 cyclopentanedicarboxylate-1,1 de diethyle

Conditions

Conditions	Yield
With sodium hydride In 1,2-dimethoxyethane	77%
With ethanol; sodium
With sodium ethanolate

: 626-87-9
1,4-dibromopentane

: 774-40-3, 4358-88-7
hydroxy-phenyl-acetic acid ethyl ester

: 6-Bromo-2-hydroxy-2-phenyl-heptanoic acid ethyl ester

Conditions

Conditions	Yield
With lithium diisopropyl amide In tetrahydrofuran 1.) -78 deg C, 15 min; 2.) warm up to RT, 1 h;	77%

: 626-87-9
1,4-dibromopentane

: 626-92-6
1,4-dichloropentane

Conditions

Conditions	Yield
With lithium chloride In N,N-dimethyl-formamide at 90℃; Inert atmosphere;	77%

: 69039-10-7
(diphenylthiophosphinoyl)acetonitrile

: 626-87-9
1,4-dibromopentane

: (1R,2R)-1-(Diphenyl-phosphinothioyl)-2-methyl-cyclopentanecarbonitrile

Conditions

Conditions	Yield
With potassium hydroxide; N-benzyl-N,N,N-triethylammonium chloride In acetonitrile at 20℃; for 7.5h;	76%

: 4852-26-0
3-pentylmagnesium bromide

: 626-87-9
1,4-dibromopentane

: 1402161-14-1
2-bromo-6-ethyloctane

Conditions

Conditions	Yield
With copper(l) chloride In tetrahydrofuran at 20℃; for 1h; Inert atmosphere;	76%

: 626-87-9
1,4-dibromopentane

: 10387-40-3
potassium thioacetate

A: 221218-83-3
4-bromopentyl thioacetate

B: thioacetic acid S-(4-acetylsulfanyl-1-methyl-butyl) ester

Conditions

Conditions	Yield
With silica gel In benzene at 60℃; for 7h;	A 75% B 11%

...Expand

: 78-82-0
Isobutyronitrile

: 626-87-9
1,4-dibromopentane

: 6-bromo-2,2-dimethylheptanenitrile

Conditions

Conditions	Yield
Stage #1: Isobutyronitrile With n-butyllithium; diisopropylamine In tetrahydrofuran at -78℃; for 1h; Stage #2: 1,4-dibromopentane In tetrahydrofuran at -78 - 20℃;	74%

: 598-98-1
Methyl pivalate

: 626-87-9
1,4-dibromopentane

: 2-methyl-1-tert-butylcyclopentan-1-ol

Conditions

Conditions	Yield
Stage #1: 1,4-dibromopentane With magnesium In tetrahydrofuran at 20℃; for 4h; Stage #2: Methyl pivalate In tetrahydrofuran at 0 - 20℃;	72%

: 677-22-5
tert-butylmagnesium chloride

: 626-87-9
1,4-dibromopentane

: 1282059-68-0
6-bromo-2,2-dimethylheptane

Conditions

Conditions	Yield
With cobalt(II) chloride; lithium iodide; isoprene In tetrahydrofuran at -78 - 50℃; for 12h; Inert atmosphere;	71%
With cobalt(II) chloride; lithium iodide; isoprene In tetrahydrofuran at -78 - 50℃; for 12h; Inert atmosphere;	71%

1,4-Dibromopentane Chemical Properties

Molecular Structure of 1,4-Dibromopentane (CAS No.626-87-9):

Molecular Formula: C₅H₁₀Br₂
Molecular Weight: 229.9409
CAS No: 626-87-9
XLogP3-AA: 2.9
Exact Mass: 229.912879
MonoIsotopic Mass: 227.914926
Topological Polar Surface Area: 0
Heavy Atom Count: 7
Formal Charge: 0
Complexity: 37.1
H bond acceptors: 0
H bond donors: 0
Freely Rotating Bonds: 3
Polar Surface Area: Å²
Index of Refraction: 1.501
Molar Refractivity: 40.63 cm³
Molar Volume: 137.8 cm³
Surface Tension: 33.9 dyne/cm
Density: 1.668 g/cm³
Flash Point: 73.1 °C
Enthalpy of Vaporization: 41.71 kJ/mol
Boiling Point: 198.7 °C at 760 mmHg
Vapour Pressure: 0.502 mmHg at 25°C
Chemical Properties clear colorless to light yellow-brown liquid
IUPAC Name: 1,4-Dibromopentane
Canonical SMILES: CC(CCCBr)Br
InChI: InChI=1S/C₅H₁₀Br₂/c1-5(7)3-2-4-6/h5H,2-4H2,1H3
InChIKey: CNBFRBXEGGRSPL-UHFFFAOYSA-N
Product Categories: Alkyl;Halogenated Hydrocarbons;Organic Building Blocks

1,4-Dibromopentane Safety Profile

Hazard Codes: Irritant Xi, Harmful Xn
Risk Statements: 36/37/38-36/38-22
R36/37/38:Irritating to eyes, respiratory system and skin.
R36/38:Irritating to eyes and skin.
R22:Harmful if swallowed.
Safety Statements: 26-36-37/39
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36:Wear suitable protective clothing.
S37/39:Wear suitable gloves and eye/face protection.
WGK Germany: 3

Product Name

1,4-Dibromopentane

Synthetic route

1,4-Dibromopentane Chemical Properties

1,4-Dibromopentane Safety Profile

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