Bromocyclopentane supplier

Name
Bromocyclopentane
EINECS 205-294-6
CAS No. 137-43-9
Article Data59
CAS DataBase
Density 1.445 g/cm³
Solubility Immiscible with water.
Melting Point 137-139ºC
Formula C₅H₉Br
Boiling Point 135 °C at 760 mmHg
Molecular Weight 149.03
Flash Point 35 °C
Transport Information UN 1993 3/PG 3
Appearance colorless to yellow liquid
Safety 23-24/25-16
Risk Codes 10
Molecular Structure
Hazard Symbols R10:;
Synonyms Cyclopentane,bromo-;Cyclopentyl bromide;NSC 1110;AI3-23448;
PSA 0.00000
LogP 2.32390

Synthetic route

: 287-92-3
Cyclopentane

: 137-43-9
Cyclopentyl bromide

Conditions

Conditions	Yield
With bromine; aluminium trichloride; Acetyl bromide In pentane at 0℃; for 1.83333h;	100%
With bromine; aluminium trichloride; Acetyl bromide In pentane at 0℃; for 1.83333h; Product distribution; ionic bromination of other cycloalkanes and n-alkanes with various catalysts and at different temperatures;	100%
With bromine; sodium t-butanolate In cyclohexane Heating;	100%

: 5-Cyclopentyloxy-thianthren-5-ium; perchlorate

A: 137-43-9
Cyclopentyl bromide

B: 2362-50-7
thianthrene-5-oxide

C: 142-29-0
cyclopentene

D: 92-85-3
Thianthrene

Conditions

Conditions	Yield
With 18-crown-6 ether; potassium bromide Product distribution; Substitution; elimination;	A 89% B 100% C 1.5% D 3.5%

...Expand

: 96-41-3
Cyclopentanol

: 137-43-9
Cyclopentyl bromide

Conditions

Conditions	Yield
With t-butyl bromide; n-pentylmethylimidazolium bromide for 2h; sonication;	82%
With sulfuric acid; hydrogen bromide at 100℃;
With hydrogen bromide at 100℃;

: 287-92-3
Cyclopentane

A: 137-43-9
Cyclopentyl bromide

B: 96-41-3
Cyclopentanol

Conditions

Conditions	Yield
With [FeIV(1,1-di(pyridin-2-yl)-N,N-bis(quinolin-2-ylmethyl)methanamine)(O)]2+; [FeII(1,1-di(pyridin-2-yl)-N,N-bis(quinolin-2-ylmethyl)methanamine)(Br)]Br In acetonitrile at 25℃; for 0.5h; Inert atmosphere; Glovebox;	A 52% B n/a

: 4415-82-1
cyclobutanemethanol

: 137-43-9
Cyclopentyl bromide

Conditions

Conditions	Yield
With hydrogen bromide

: 75-62-7
Bromotrichloromethane

: 185-94-4
bicyclo[2.1.0]pentane

A: 137-43-9
Cyclopentyl bromide

B: 1781-66-4
cyclopent-3-enyl bromide

: 17827-32-6, 19640-06-3
trans-1-bromo-2-(trichloromethyl)cyclopentane

: 10230-26-9
trans-1,2-dibromocyclopentane

: 14376-82-0, 37722-39-7, 89180-35-8
trans-1-bromo-2-chlorocyclopentane

: 14376-82-0, 37722-39-7, 89180-35-8
cis-1-bromo2-chlorocyclopentane

Conditions

Conditions	Yield
for 4h; Product distribution; Mechanism; Ambient temperature; Irradiation; Effect of added t-butyl hypochlorite;

...Expand

: 287-92-3
Cyclopentane

A: 123-56-8
Succinimide

B: 137-43-9
Cyclopentyl bromide

C: 3234-49-9
1,2-dibromopentane

D: 18926-24-4
3-bromopropanoyl isocyanate

Conditions

Conditions	Yield
With N-Bromosuccinimide; cyclohexane In acetonitrile at 23℃; for 16h; Product distribution; Mechanism; Irradiation; Effect of solvent on the Relative Rates of Bromination; Effect of Added Bromine; Effect of Added Olefine (C2H4);

...Expand

: 287-92-3
Cyclopentane

A: 137-43-9
Cyclopentyl bromide

B: 29974-65-0
1,2-dibromo-cyclopentane

Conditions

Conditions	Yield
With N-Bromosuccinimide; bromine In dichloromethane; cyclohexane at 15℃; Product distribution; Mechanism; Irradiation; relative reactivity; other cycloalkanes; other bromination agents; var temp.;	A 37.6 % Chromat. B 13.7 % Chromat.
With hydrogen bromide; dihydrogen peroxide In water at 50℃; for 6h; Irradiation;	A 64.3 %Spectr. B 15 %Spectr.

: 1556-18-9
cyclopentyl iodide

: 137-43-9
Cyclopentyl bromide

Conditions

Conditions	Yield
With iodobenzene; tetrabutylammomium bromide In tetrachloromethane; acetonitrile at 25℃; Rate constant;

: 185-94-4
bicyclo[2.1.0]pentane

A: 137-43-9
Cyclopentyl bromide

B: 68479-47-0
cis-1,3-dibromocyclopentane

: 10230-26-9
trans-1,2-dibromocyclopentane

: 68479-48-1
trans-1,3-dibromocyclopentane

Conditions

Conditions	Yield
With bromine In tetrachloromethane at 0℃; Product distribution; Mechanism;

...Expand

: 96449-49-9
cyclopentyldiphenylbismutane

A: 137-43-9
Cyclopentyl bromide

B: 108-86-1
bromobenzene

Conditions

Conditions	Yield
With bromine In dichloromethane -70 deg C to r.t.;	A 67 % Chromat. B 19 % Chromat.

: 142-29-0
cyclopentene

: 137-43-9
Cyclopentyl bromide

Conditions

Conditions	Yield
With borane; bromine; sodium methylate 1.) THF, 2.) 20-25 deg C, MeOH; Yield given. Multistep reaction;

silver salt of/the/ cyclopentanecarboxylic acid: silver salt of/the/ cyclopentanecarboxylic acid

: 137-43-9
Cyclopentyl bromide

Conditions

Conditions	Yield
With chloroform; bromine

: 4415-82-1
cyclobutanemethanol

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

: 137-43-9
Cyclopentyl bromide

Conditions

Conditions	Yield
at 100℃; im Rohr;

: 98954-98-4
butyl-cyclopentyl ether

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

A: 109-65-9
1-bromo-butane

B: 137-43-9
Cyclopentyl bromide

Conditions

Conditions	Yield
at 26℃;

...Expand

: 542-92-7
cyclopenta-1,3-diene

A: 137-43-9
Cyclopentyl bromide

B: 1781-66-4
cyclopent-3-enyl bromide

Conditions

Conditions	Yield
Stage #1: cyclopenta-1,3-diene With borane-THF In tetrahydrofuran at 20℃; for 2h; Stage #2: With sodium hydroxide; dihydrogen peroxide In diethyl ether for 0.5h; Stage #3: With phosphorus tribromide In pentane for 12h; Heating; Title compound not separated from byproducts;

: 84559-49-9
cyclopentylpentaaquochromium(III)

A: 137-43-9
Cyclopentyl bromide

B: 14873-01-9
chromium(III) hexahydrate cation

Conditions

Conditions	Yield
With bromine In water Kinetics; byproducts: Br(1-); reaction complex with bromine at 25°C;

: 287-92-3
Cyclopentane

A: 137-43-9
Cyclopentyl bromide

: 10230-26-9
trans-1,2-dibromocyclopentane

Conditions

Conditions	Yield
With bromine In water at 20℃; for 0.316667h; Flow reactor; UV-irradiation; Overall yield = 92 %Chromat.;

: 5614-37-9
cyclopentyl methyl ether

: 137-43-9
Cyclopentyl bromide

Conditions

Conditions	Yield
With boron trichloride; boron tribromide In dichloromethane at -78 - 20℃; for 16h; Inert atmosphere; regioselective reaction;

: 137-43-9
Cyclopentyl bromide

: 33670-50-7
cyclopentyl azide

Conditions

Conditions	Yield
With sodium azide In dimethyl sulfoxide	100%
With sodium azide In dimethyl sulfoxide at 25℃; for 9h;	98%
With sodium azide In dimethyl sulfoxide	94%

: 137-43-9
Cyclopentyl bromide

: 99-93-4
4-Hydroxyacetophenone

: 857563-36-1
1-(4-cyclopentyloxy-phenyl)-ethanone

Conditions

Conditions	Yield
With caesium carbonate In acetonitrile at 80℃; for 3h;	100%
With sodium hydroxide

: 137-43-9
Cyclopentyl bromide

: 37942-01-1
5-bromo-2-methoxyphenol

: 138509-45-2
4-bromo-2-cyclopentyloxyanisole

Conditions

Conditions	Yield
With potassium carbonate In acetone for 24h; Heating;	100%
With potassium carbonate In N,N-dimethyl-formamide at 65℃; for 10h;	99%
With potassium carbonate In N,N-dimethyl-formamide at 50℃; for 20h;	93%

: 137-43-9
Cyclopentyl bromide

: 113832-57-8, 1193-93-7
N-ethylidenecyclohexylamine

: 169749-84-2
4-t-butoxy-3-methyl-2,5-difluoropyridine

: (4-tert-Butoxy-5-fluoro-3-methyl-pyridin-2-yl)-cyclopentyl-acetaldehyde

Conditions

Conditions	Yield
With lithium diisopropyl amide at 0 - 25℃;	100%

...Expand

: 137-43-9
Cyclopentyl bromide

: 151103-08-1
4-difluoromethoxy-3-hydroxybenzaldehyde

: 153587-14-5
3-Cyclopentyloxy-4-difluoromethoxybenzaldehyde

Conditions

Conditions	Yield
With potassium carbonate In DMF (N,N-dimethyl-formamide)	100%
With potassium carbonate In N-methyl-acetamide	89%
With potassium carbonate; potassium iodide In N,N-dimethyl-formamide at 65℃; for 22h;	87%

: 137-43-9
Cyclopentyl bromide

: 22607-75-6
4-azatricyclo<4.3.1.1.3,8>undecan-5-one

: 404352-65-4
4-(cyclopentyl)-4-azatricyclo[4.3.1.13,8]undecan-5-one

Conditions

Conditions	Yield
With 18-crown-6 ether; sodium hydride at 80℃; for 120h;	100%

: 137-43-9
Cyclopentyl bromide

: 90-02-8
salicylaldehyde

: 2-(cyclopentyloxy)benzaldehyde

Conditions

Conditions	Yield
With 18-crown-6 ether; potassium carbonate In acetone for 24h; Inert atmosphere; Reflux;	100%
With potassium carbonate In N,N-dimethyl-formamide at 80℃; for 4h; Inert atmosphere; Sealed vial;
With sodium hydride In N,N-dimethyl-formamide at 10 - 35℃; for 2h;

: 137-43-9
Cyclopentyl bromide

: 713-52-0
methyl 3-hydroxy-4-nitrobenzoate

: methyl 3-cyclopentyloxy-4-nitrobenzoate

Conditions

Conditions	Yield
With sodium chloride; potassium carbonate In N,N-dimethyl-formamide	100%
With potassium carbonate In N,N-dimethyl-formamide at 65℃; for 4h;

: 137-43-9
Cyclopentyl bromide

: 542-69-8
1-iodo-butane

: 205067-45-4
2-butoxy-1-methoxy-4-nitro-benzene

Conditions

Conditions	Yield
	100%

: 137-43-9
Cyclopentyl bromide

: 1450-75-5
5-Bromo-2-hydroxyacetophenone

: 1092496-74-6
1-(5-bromo-2-cyclopentyloxyphenyl)ethanone

Conditions

Conditions	Yield
With potassium carbonate In N,N-dimethyl-formamide at 60℃; for 13.5h;	100%

: 137-43-9
Cyclopentyl bromide

: 3-(tert-butoxycarbonyl)-6-isopropyl-9-(3-methoxypropoxy)-2-oxo-6,7-dihydro-2H-pyrido[2,1-a]isoquinoline-10-carboxylic acid

: 3-tert-butyl 10-cyclopentyl 6-isopropyl-9-(3-methoxypropoxy)-2-oxo-6,7-dihydro-2H-pyrido[2,1-a]isoquinoline-3,10-dicarboxylate

Conditions

Conditions	Yield
With potassium carbonate In N,N-dimethyl-formamide at 50℃; for 12h;	100%

: 137-43-9
Cyclopentyl bromide

: 636-93-1
5-nitroguaiacol

: 154464-25-2
1-cyclopentyloxy-2-methoxy-5-nitrobenzene

Conditions

Conditions	Yield
With potassium carbonate In DMF (N,N-dimethyl-formamide) at 100℃; for 10h;	99.6%
With potassium carbonate In acetone for 24h; Heating;	98%
With potassium carbonate In acetonitrile at 90℃;	76.9%

: 621-59-0
isovanillin

: 137-43-9
Cyclopentyl bromide

: 67387-76-2
3-cyclopentyloxy-4-methoxybenzylaldehyde

Conditions

Conditions	Yield
With potassium carbonate In N,N-dimethyl-formamide at 65℃; for 16h;	99%
With potassium carbonate In N,N-dimethyl-formamide at 60℃; for 12h;	97%
With potassium carbonate In N,N-dimethyl-formamide at 100℃;	97%

: 288-13-1
NH-pyrazole

: 137-43-9
Cyclopentyl bromide

: 1-cyclopentyl-1H-pyrazole

Conditions

Conditions	Yield
With sodium hydrogencarbonate at 120℃; for 12h;	99%

: 137-43-9
Cyclopentyl bromide

: 120-92-3
cyclopentanone

Conditions

Conditions	Yield
With oxygen; kieselguhr; copper(l) chloride In hexane for 2.5h; Oxidation; Heating;	99%

: 137-43-9
Cyclopentyl bromide

: 524-38-9
N-hydroxyphthalimide

: 54224-24-7
2-(cyclopentyloxy)-1H-isoindole-1,3(2H)-dione

Conditions

Conditions	Yield
Stage #1: N-hydroxyphthalimide With potassium carbonate In dimethyl sulfoxide at 20℃; for 0.0833333h; Stage #2: Cyclopentyl bromide In dimethyl sulfoxide at 80℃; for 3h;	99%
With 1,8-diazabicyclo[5.4.0]undec-7-ene In N,N-dimethyl-formamide at 80℃; for 2h;	87%
Stage #1: N-hydroxyphthalimide With potassium carbonate In dimethyl sulfoxide at 25℃; for 0.0833333h; Stage #2: Cyclopentyl bromide In dimethyl sulfoxide at 80℃; for 3h;	85%

: 137-43-9
Cyclopentyl bromide

: 71-43-2
benzene

: 18970-51-9
1,3,5-tricyclopentylbenzene

Conditions

Conditions	Yield
With aluminum (III) chloride at -40 - 20℃; Inert atmosphere;	99%
With aluminum (III) chloride In dichloromethane at 0℃; for 2h; Friedel-Crafts Alkylation; Inert atmosphere;	90%
With aluminum (III) chloride In dichloromethane at 0 - 20℃; for 2h; Inert atmosphere;
With aluminum (III) chloride at -40 - 20℃; Inert atmosphere;
With aluminum (III) chloride at -40 - 20℃; Inert atmosphere;

: 137-43-9
Cyclopentyl bromide

: 3-(1-methyl-1H-indol-3-yl)-4-(propylamino)-1H-pyrrole-2,5-dione

: 1-cyclopentyl-3-(1-methyl-1H-indol-3-yl)-4-(propylamino)-1H-pyrrole-2,5-dione

Conditions

Conditions	Yield
With potassium carbonate In N,N-dimethyl-formamide at 50℃; for 24h;	99%

: 121-32-4
4-hydroxy-3-ethoxybenzaldehyde

: 137-43-9
Cyclopentyl bromide

: 3-ethoxy-4-cyclopentoxybenzaldehyde

Conditions

Conditions	Yield
With potassium carbonate In N,N-dimethyl-formamide at 65℃; for 15h;	99%

: 137-43-9
Cyclopentyl bromide

: 1429621-76-0
2-(3,4,5-trimethoxybenzoyl)-4-phenyl-1H-imidazole

: 1429621-96-4
C24H26N2O4

Conditions

Conditions	Yield
With potassium carbonate In acetonitrile Reflux;	98.3%

: 137-43-9
Cyclopentyl bromide

: 62-53-3
aniline

: 40649-26-1
N-cyclopentylaniline

Conditions

Conditions	Yield
With potassium iodide In acetonitrile at 170℃; under 4875.39 Torr; for 0.166667h; microwave irradiation;	98%

: 137-43-9
Cyclopentyl bromide

: 121-33-5
vanillin

: 197573-17-4
4-cyclopentyloxy-3-methoxy-benzaldehyde

Conditions

Conditions	Yield
With potassium carbonate In ethanol for 16h; Reflux;	98%
With tetrabutylammomium bromide; potassium carbonate In tetrahydrofuran; water; ethyl acetate	97%
With potassium carbonate In N,N-dimethyl-formamide at 65℃; for 8h; Inert atmosphere;	97%

: 137-43-9
Cyclopentyl bromide

: 4049-39-2
4-benzyloxy-3-hydroxy-benzaldehyde

: 159783-04-7
3-cyclopentoxy-4-(benzyloxy)benzaldehyde

Conditions

Conditions	Yield
With potassium carbonate In DMF (N,N-dimethyl-formamide) at 20℃;	98%
With potassium carbonate In N-methyl-acetamide; diethyl ether; water
With potassium carbonate In N-methyl-acetamide; diethyl ether; water

: 137-43-9
Cyclopentyl bromide

: 3964-56-5
4-bromo-2-chlorophenol

: 1310949-91-7
4-bromo-2-chloro-1-(cyclopentyloxy)benzene

Conditions

Conditions	Yield
With potassium carbonate In N,N-dimethyl-formamide at 20℃; for 96h;	98%
With caesium carbonate In N,N-dimethyl acetamide at 150℃; for 16h;
With caesium carbonate In 1-methyl-pyrrolidin-2-one at 145 - 155℃; for 24h;

: 16879-02-0
6-chloro-2-hydroxypyridine

: 137-43-9
Cyclopentyl bromide

: 2-chloro-6-(cyclopentoxy)pyridine

Conditions

Conditions	Yield
With potassium carbonate In N,N-dimethyl-formamide at 80℃; for 24h;	98%
With potassium carbonate In N,N-dimethyl-formamide at 80℃; for 24h;	98%

: 137-43-9
Cyclopentyl bromide

: N-(2-fluorophenyl)-9-isopropyl-9H-purin-6-amine

: N-(2-cyclopentyl-6-fluorophenyl)-9-isopropyl-9H-purin-6-amine

Conditions

Conditions	Yield
With (1,2-dimethoxyethane)dichloronickel(II); N,N'-di-tert-butylethylenediamine; lithium tert-butoxide In 1,4-dioxane at 120℃; for 16h; Inert atmosphere; Schlenk technique;	98%

: 137-43-9
Cyclopentyl bromide

: 6-bromo-2-(2,5-dimethyl-1H-pyrrol-1-yl)-4-methylquinazolin-8-ol

: 6-bromo-8-(cyclopentyloxy)-2-(2,5-dimethyl-1H-pyrrol-1-yl)-4-methylquinazoline

Conditions

Conditions	Yield
With potassium carbonate In acetonitrile at 60℃; Sealed tube;	98%

: 137-43-9
Cyclopentyl bromide

: 7646-85-7
zinc(II) chloride

: cyclopentylzinc chloride

Conditions

Conditions	Yield
Stage #1: Cyclopentyl bromide With magnesium; lithium chloride In tetrahydrofuran at 25℃; Inert atmosphere; Schlenk technique; Stage #2: zinc(II) chloride In tetrahydrofuran at 0 - 25℃; for 0.25h; Inert atmosphere; Schlenk technique;	98%

Bromocyclopentane Chemical Properties

Molecule structure of Bromocyclopentane (CAS NO.137-43-9):

IUPAC Name: Bromocyclopentane
Molecular Weight: 149.02896 g/mol
Molecular Formula: C₅H₉Br
Density: 1.445 g/cm³
Boiling Point: 135 °C at 760 mmHg
Flash Point: 35 °C
Index of Refraction: 1.51
Molar Refractivity: 30.84 cm³
Molar Volume: 103 cm³
Surface Tension: 35.4 dyne/cm
Enthalpy of Vaporization: 35.71 kJ/mol
Vapour Pressure: 9.73 mmHg at 25 °C
Storage Temp.: store at R.T.
Stability: stable. flammable. incompatible with strong oxidizing agents, strong bases.
XLogP3-AA: 2.3
Exact Mass: 147.988763
MonoIsotopic Mass: 147.988763
Canonical SMILES: C1CCC(C1)Br
InChI: InChI=1S/C5H9Br/c6-5-3-1-2-4-5/h5H,1-4H2
InChIKey: BRTFVKHPEHKBQF-UHFFFAOYSA-N
EINECS: 205-294-6
Product Categories: Pharmaceutical Intermediates; CHLORO ALKANE COMPOUNDS

Bromocyclopentane Uses

Bromocyclopentane (CAS NO.137-43-9) is used as a solvent. It is used as an intermediate to manufacture surfactant, pharmaceuticals and other organic compounds.

Bromocyclopentane Safety Profile

Risk Statements: 10
R10:Flammable.
Safety Statements: 23-24/25-16
S23:Do not breathe vapour.
S24/25:Avoid contact with skin and eyes.
S16:Keep away from sources of ignition.
RIDADR: UN 1993 3/PG 3
WGK Germany: 3
F: 8
HazardClass: 3
PackingGroup: III
HS Code: 29035990

Bromocyclopentane Standards and Recommendations

APPEARANCE: clear to yellow liquid
CONTENT: 98.0% min
WATER: 0.1% max

Bromocyclopentane Specification

Bromocyclopentane (CAS NO.137-43-9) is also named as AI3-23448 ; Cyclopentyl bromide ; NSC 1110 ; Cyclopentane, bromo- . Bromocyclopentane (CAS NO.137-43-9) is colorless to yellow liquid.

Product Name

Bromocyclopentane

Synthetic route

Bromocyclopentane Chemical Properties

Bromocyclopentane Uses

Bromocyclopentane Safety Profile

Bromocyclopentane Standards and Recommendations

Bromocyclopentane Specification

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