Product Name

  • Name

    4-Bromophenylurea

  • EINECS
  • CAS No. 1967-25-5
  • Article Data34
  • CAS DataBase
  • Density 1.708 g/cm3
  • Solubility
  • Melting Point 225-227 °C
  • Formula C7H7BrN2O
  • Boiling Point 290.9 °C at 760 mmHg
  • Molecular Weight 215.049
  • Flash Point 129.7 °C
  • Transport Information
  • Appearance
  • Safety 22-24/25
  • Risk Codes
  • Molecular Structure Molecular Structure of 1967-25-5 (4-Bromophenylurea)
  • Hazard Symbols
  • Synonyms Urea,(4-bromophenyl)- (9CI);Urea, (p-bromophenyl)- (6CI,7CI,8CI);(p-Bromophenyl)urea;1-(p-Bromophenyl)urea;4-Bromophenylurea;
  • PSA 55.12000
  • LogP 2.71300

Synthetic route

phenyl carbamate
64-10-8

phenyl carbamate

4-bromophenylurea
1967-25-5

4-bromophenylurea

Conditions
ConditionsYield
With sodium anthraquinone-2-sulfonate; trifluoroacetic acid; sodium bromide In water; acetonitrile at 20℃; for 4h; Irradiation; Sealed tube; regioselective reaction;93%
With tribromo-isocyanuric acid In acetonitrile at 25℃; regioselective reaction;84%
With chloroform; bromine
With bromine; acetic acid
sodium isocyanate
917-61-3

sodium isocyanate

4-bromo-aniline
106-40-1

4-bromo-aniline

4-bromophenylurea
1967-25-5

4-bromophenylurea

Conditions
ConditionsYield
With acetic acid In water for 0.5h;89%
With acetic acid In water at 50℃; for 2h;78.8%
In water; acetic acid at 20℃;
potassium cyanate
590-28-3

potassium cyanate

4-bromo-aniline
106-40-1

4-bromo-aniline

4-bromophenylurea
1967-25-5

4-bromophenylurea

Conditions
ConditionsYield
With hydrogenchloride In water for 0.25h; Heating;81%
With hydrogenchloride In water at 20℃; for 12h; Inert atmosphere;80%
With acetic acid In water for 1h;76.7%
p-bromobenzamide
698-67-9

p-bromobenzamide

4-bromophenylurea
1967-25-5

4-bromophenylurea

Conditions
ConditionsYield
With [bis(acetoxy)iodo]benzene; ammonia In methanol at 0 - 20℃; for 2h; Hofmann Rearrangement; Inert atmosphere;73%
N-(p-bromophenyl)-N'-trimethylsilylurea

N-(p-bromophenyl)-N'-trimethylsilylurea

4-bromophenylurea
1967-25-5

4-bromophenylurea

Conditions
ConditionsYield
In diethyl ether; water50%
ethyl allophanate
626-36-8

ethyl allophanate

4-bromo-aniline
106-40-1

4-bromo-aniline

4-bromophenylurea
1967-25-5

4-bromophenylurea

Conditions
ConditionsYield
at 140℃;
at 140℃;
C7H6BrN3O2
85754-34-3

C7H6BrN3O2

4-bromophenylurea
1967-25-5

4-bromophenylurea

Conditions
ConditionsYield
chloromethyl formate In methanol; water at 25℃; Rate constant; Thermodynamic data; μ=1.0 mol*l-1; ΔH(excit.), -ΔS(excit.);
phenyl carbamate
64-10-8

phenyl carbamate

bromine
7726-95-6

bromine

acetic acid
64-19-7

acetic acid

4-bromophenylurea
1967-25-5

4-bromophenylurea

4-bromo-aniline
106-40-1

4-bromo-aniline

sodium cyanate

sodium cyanate

4-bromophenylurea
1967-25-5

4-bromophenylurea

Conditions
ConditionsYield
With acetic acid
sodium cyanate
15736-98-8

sodium cyanate

4-bromo-aniline
106-40-1

4-bromo-aniline

4-bromophenylurea
1967-25-5

4-bromophenylurea

Conditions
ConditionsYield
With acetic acid
sodium fulminate
61706-59-0

sodium fulminate

4-bromo-aniline
106-40-1

4-bromo-aniline

4-bromophenylurea
1967-25-5

4-bromophenylurea

Conditions
ConditionsYield
With acetic acid at 20℃;
N-trimethylsilyl-N'-phenylurea
165334-40-7

N-trimethylsilyl-N'-phenylurea

4-bromophenylurea
1967-25-5

4-bromophenylurea

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: 64 percent / N-bromosuccinimide / tetrahydrofuran / 4 h / 100 °C
2: 50 percent / H2O; diethyl ether
View Scheme
4-bromoacetanilide
103-88-8

4-bromoacetanilide

4-bromophenylurea
1967-25-5

4-bromophenylurea

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: NaOH-solution
2: diluted hydrochloric acid
View Scheme
benzenesulfonyl chloride
98-09-9

benzenesulfonyl chloride

4-bromophenylurea
1967-25-5

4-bromophenylurea

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: natrium carbonate; chloroform / und Kochen des Produktes mit Wasser
2: glacial acetic acid; bromine
View Scheme
1,1'-carbonyldiimidazole
530-62-1

1,1'-carbonyldiimidazole

4-bromo-aniline
106-40-1

4-bromo-aniline

4-bromophenylurea
1967-25-5

4-bromophenylurea

Conditions
ConditionsYield
In dichloromethane at 20℃; for 6h;
phenyl isocyanate
103-71-9

phenyl isocyanate

4-bromophenylurea
1967-25-5

4-bromophenylurea

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: ammonia / hexane / 25 °C / Cooling with ice
2: tribromo-isocyanuric acid / acetonitrile / 25 °C
View Scheme
4-bromo-aniline
106-40-1

4-bromo-aniline

alkali cyanate

alkali cyanate

4-bromophenylurea
1967-25-5

4-bromophenylurea

Conditions
ConditionsYield
With acetic acid In water at 20℃;
4-Bromobenzoic acid
586-76-5

4-Bromobenzoic acid

4-bromophenylurea
1967-25-5

4-bromophenylurea

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: 1,8-diazabicyclo[5.4.0]undec-7-ene / toluene / 0.08 h / 0 °C / Inert atmosphere
2: sodium azide; dmap / toluene; N,N-dimethyl-formamide / Inert atmosphere
3: ammonium hydroxide / toluene; N,N-dimethyl-formamide; water / 90 °C / Inert atmosphere
View Scheme
C19H14BrO3P

C19H14BrO3P

4-bromophenylurea
1967-25-5

4-bromophenylurea

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: sodium azide; dmap / toluene; N,N-dimethyl-formamide / Inert atmosphere
2: ammonium hydroxide / toluene; N,N-dimethyl-formamide; water / 90 °C / Inert atmosphere
View Scheme
p-bromobenzoyl azide
14917-59-0

p-bromobenzoyl azide

4-bromophenylurea
1967-25-5

4-bromophenylurea

Conditions
ConditionsYield
With ammonium hydroxide In water; N,N-dimethyl-formamide; toluene at 90℃; Curtius Rearrangement; Inert atmosphere;148 mg
4-bromophenylurea
1967-25-5

4-bromophenylurea

4-bromophenyldiazonium nitrate

4-bromophenyldiazonium nitrate

Conditions
ConditionsYield
With Nitrogen dioxide In 1,4-dioxane at 15 - 30℃; for 4h;95%
With tributyl phosphate-NO2 In various solvent(s) at 10 - 15℃;86%
4-bromophenylurea
1967-25-5

4-bromophenylurea

p-toluenesulfonyl chloride
98-59-9

p-toluenesulfonyl chloride

N-(4-bromophenyl)-N-cyano-4-methylbenzenesulfonamide

N-(4-bromophenyl)-N-cyano-4-methylbenzenesulfonamide

Conditions
ConditionsYield
With pyridine at 20℃; Schlenk technique;91%
With pyridine at 25℃; for 1.08333h; Sealed tube; Inert atmosphere;44%
With pyridine
4-bromophenylurea
1967-25-5

4-bromophenylurea

diethyl malonate
105-53-3

diethyl malonate

1-(4-bromophenyl)pyrimidine-2,4,6(1H,3H,5H)-trione
251468-84-5

1-(4-bromophenyl)pyrimidine-2,4,6(1H,3H,5H)-trione

Conditions
ConditionsYield
Stage #1: diethyl malonate With methanol; sodium for 0.0833333h;
Stage #2: 4-bromophenylurea In methanol for 6h; Reflux;
89%
With sodium In ethanol for 35h; Reflux;59%
4-bromophenylurea
1967-25-5

4-bromophenylurea

ethyl 2-isothiocyanato-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate
85716-87-6

ethyl 2-isothiocyanato-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate

C19H20BrN3O3S2

C19H20BrN3O3S2

Conditions
ConditionsYield
In ethanol Heating;87%
4-bromophenylurea
1967-25-5

4-bromophenylurea

benzyl alcohol
100-51-6

benzyl alcohol

N-benzyl-N'-(4-bromophenyl)urea
13208-62-3

N-benzyl-N'-(4-bromophenyl)urea

Conditions
ConditionsYield
With bis[dichloro(pentamethylcyclopentadienyl)iridium(III)]; sodium hydroxide In tert-Amyl alcohol at 110℃; for 12h; Schlenk technique; Green chemistry;82%
4-bromophenylurea
1967-25-5

4-bromophenylurea

chloroacetic acid
79-11-8

chloroacetic acid

2-(p-bromophenyl)-imino-4-oxazolidone

2-(p-bromophenyl)-imino-4-oxazolidone

Conditions
ConditionsYield
With sodium acetate In ethanol Heating;80%
4-bromophenylurea
1967-25-5

4-bromophenylurea

(R,S)-2-chloropropionic acid
598-78-7

(R,S)-2-chloropropionic acid

2-[(E)-4-Bromo-phenylimino]-5-methyl-oxazolidin-4-one

2-[(E)-4-Bromo-phenylimino]-5-methyl-oxazolidin-4-one

Conditions
ConditionsYield
With sodium acetate In ethanol Heating;80%
4-bromophenylurea
1967-25-5

4-bromophenylurea

4-(4-bromophenyl)semicarbazide
2646-26-6

4-(4-bromophenyl)semicarbazide

Conditions
ConditionsYield
With sodium hydroxide; hydrazine hydrate In ethanol for 3h; Heating;78%
With ethanol; hydrazine hydrate
With hydrazine hydrate; sodium hydroxide In ethanol Reflux;
ethyl 2-diazo-3-oxobutanoate
2009-97-4

ethyl 2-diazo-3-oxobutanoate

4-bromophenylurea
1967-25-5

4-bromophenylurea

ethyl 1-(4-bromophenyl)-5-methyl-2-oxo-2,3-dihydro-1H-imidazole-4-carboxylate

ethyl 1-(4-bromophenyl)-5-methyl-2-oxo-2,3-dihydro-1H-imidazole-4-carboxylate

Conditions
ConditionsYield
Stage #1: ethyl 2-diazo-3-oxobutanoate; 4-bromophenylurea With rhodium (II) octanoate dimer In 1,2-dichloro-ethane; toluene at 80℃; for 1.5h;
Stage #2: With trifluoroacetic acid In 1,2-dichloro-ethane; toluene at 20℃; for 0.5h;
75.2%
4-bromophenylurea
1967-25-5

4-bromophenylurea

benzyl alcohol
100-51-6

benzyl alcohol

N-benzylidene-4-bromoaniline
780-20-1

N-benzylidene-4-bromoaniline

Conditions
ConditionsYield
With potassium hydroxide at 135℃; for 24h; Sealed tube; Schlenk technique; Green chemistry;75%
4-bromophenylurea
1967-25-5

4-bromophenylurea

1,3-diphenylpropanedione
120-46-7

1,3-diphenylpropanedione

N-(4-bromophenyl)benzamide
7702-38-7

N-(4-bromophenyl)benzamide

Conditions
ConditionsYield
With potassium hydroxide at 135℃; for 24h; Schlenk technique;65%
ethyl 2-(4-chloro-6-(2-oxo-2H-chromen-4-yloxy)-1,3,5-triazin-2-ylamino)acetate
1173548-47-4

ethyl 2-(4-chloro-6-(2-oxo-2H-chromen-4-yloxy)-1,3,5-triazin-2-ylamino)acetate

4-bromophenylurea
1967-25-5

4-bromophenylurea

ethyl 2-(4-(2-oxo-2H-chromen-4-yloxy)-6-(3-(4-bromophenyl)ureido)-1,3,5-triazin-2-ylamino)acetate
1173548-09-8

ethyl 2-(4-(2-oxo-2H-chromen-4-yloxy)-6-(3-(4-bromophenyl)ureido)-1,3,5-triazin-2-ylamino)acetate

Conditions
ConditionsYield
In 1,4-dioxane for 4h; Reflux;63%
4-bromophenylurea
1967-25-5

4-bromophenylurea

benzalacetophenone
94-41-7

benzalacetophenone

N-benzylidene-4-bromoaniline
780-20-1

N-benzylidene-4-bromoaniline

Conditions
ConditionsYield
With potassium hydroxide at 135℃; for 24h; Schlenk technique;63%
4-bromophenylglyoxal
5195-29-9

4-bromophenylglyoxal

4-bromophenylurea
1967-25-5

4-bromophenylurea

1,5-bis-(4-bromo-phenyl)-imidazolidine-2,4-dione
37932-74-4

1,5-bis-(4-bromo-phenyl)-imidazolidine-2,4-dione

Conditions
ConditionsYield
With hydrogenchloride; acetic acid for 4h; Heating;62%
phenylglyoxal hydrate
1074-12-0

phenylglyoxal hydrate

4-bromophenylurea
1967-25-5

4-bromophenylurea

1-(4-bromo-phenyl)-5-phenyl-imidazolidine-2,4-dione
37944-67-5

1-(4-bromo-phenyl)-5-phenyl-imidazolidine-2,4-dione

Conditions
ConditionsYield
With hydrogenchloride; acetic acid for 4h; Heating;60%
4-bromophenylurea
1967-25-5

4-bromophenylurea

benzil
134-81-6

benzil

3-(4-bromo-phenyl)-5,5-diphenyl-imidazolidine-2,4-dione

3-(4-bromo-phenyl)-5,5-diphenyl-imidazolidine-2,4-dione

Conditions
ConditionsYield
With sodium ethanolate In ethanol for 12h; Heating;58%
4-bromophenylurea
1967-25-5

4-bromophenylurea

sodium methylate
124-41-4

sodium methylate

(4-CF3C6H4)COC(N2)COO-JandaJel hydroxypentyl resin

(4-CF3C6H4)COC(N2)COO-JandaJel hydroxypentyl resin

1-(4-bromo-phenyl)-2-oxo-5-(4-trifluoromethyl-phenyl)-2,3-dihydro-1H-imidazole-4-carboxylic acid methyl ester

1-(4-bromo-phenyl)-2-oxo-5-(4-trifluoromethyl-phenyl)-2,3-dihydro-1H-imidazole-4-carboxylic acid methyl ester

Conditions
ConditionsYield
Stage #1: 4-bromophenylurea; (4-CF3C6H4)COC(N2)COO-JandaJel hydroxypentyl resin With rhodium (II) octanoate dimer In 1,2-dichloro-ethane; toluene at 80℃; for 0.5h;
Stage #2: With trifluoroacetic acid at 20℃; for 0.5h;
Stage #3: sodium methylate In tetrahydrofuran; methanol at 50℃; for 1h;
57%
4-(4-chloro-6-(3,4-dimethoxyphenethylamino)-1,3,5-triazin-2-yloxy)-2H-chromen-2-one
1173547-27-7

4-(4-chloro-6-(3,4-dimethoxyphenethylamino)-1,3,5-triazin-2-yloxy)-2H-chromen-2-one

4-bromophenylurea
1967-25-5

4-bromophenylurea

1-(4-bromophenyl)-3-(4-(3,4-dimethoxyphenethylamino)-6-(2-oxo-2H-chromen-4-yloxy)-1,3,5-triazin-2-yl)urea
1173547-51-7

1-(4-bromophenyl)-3-(4-(3,4-dimethoxyphenethylamino)-6-(2-oxo-2H-chromen-4-yloxy)-1,3,5-triazin-2-yl)urea

Conditions
ConditionsYield
In 1,4-dioxane for 4h; Reflux;56%
4-bromophenylurea
1967-25-5

4-bromophenylurea

1-benzyl-3,5-dichloro-6-methylpyrazin-2(1H)-one
173200-35-6

1-benzyl-3,5-dichloro-6-methylpyrazin-2(1H)-one

1-(4-benzyl-6-chloro-5-methyl-3-oxo-3,4-dihydropyrazin-2-yl)-3(4-bromophenyl)urea

1-(4-benzyl-6-chloro-5-methyl-3-oxo-3,4-dihydropyrazin-2-yl)-3(4-bromophenyl)urea

Conditions
ConditionsYield
With palladium diacetate; caesium carbonate; 4,5-bis(diphenylphos4,5-bis(diphenylphosphino)-9,9-dimethylxanthenephino)-9,9-dimethylxanthene In 1,2-dimethoxyethane at 80 - 100℃; Microwave irradiation;56%
4-bromophenylurea
1967-25-5

4-bromophenylurea

benzil
134-81-6

benzil

1-benzhydryl-3-(4-bromophenyl)urea

1-benzhydryl-3-(4-bromophenyl)urea

Conditions
ConditionsYield
With potassium hydroxide In dimethyl sulfoxide microwave irradiation;50%
4-bromophenylurea
1967-25-5

4-bromophenylurea

4,4'-dibromobenzil
35578-47-3

4,4'-dibromobenzil

1-[bis-(4-bromophenyl)-methyl]-3-(4-bromophenyl)-urea

1-[bis-(4-bromophenyl)-methyl]-3-(4-bromophenyl)-urea

Conditions
ConditionsYield
With potassium hydroxide In dimethyl sulfoxide microwave irradiation;48%
With potassium hydroxide In dimethyl sulfoxide microwave irradiation;
4-bromophenylurea
1967-25-5

4-bromophenylurea

4,4'-dichlorobenzil
3457-46-3

4,4'-dichlorobenzil

1-[bis-(4-chlorophenyl)-methyl]-3-(4-bromophenyl)-urea

1-[bis-(4-chlorophenyl)-methyl]-3-(4-bromophenyl)-urea

Conditions
ConditionsYield
With potassium hydroxide In dimethyl sulfoxide microwave irradiation;47%
With potassium hydroxide In dimethyl sulfoxide microwave irradiation;

4-Bromophenylurea Specification

The Urea,N-(4-bromophenyl)-, with the CAS registry number 1967-25-5, is also known as 1-(4-Bromophenyl)urea. This chemical's molecular formula is C7H7BrN2O and molecular weight is 215.05. What's more, its IUPAC name is called (4-Bromophenyl)urea.

Physical properties about Urea,N-(4-bromophenyl)- are: (1) ACD/LogP: 1.98; (2) # of Rule of 5 Violations: 0; (3) ACD/LogD (pH 5.5): 1.98; (4) ACD/LogD (pH 7.4): 1.98; (5) ACD/BCF (pH 5.5): 18.83; (6) ACD/BCF (pH 7.4): 18.83; (7) ACD/KOC (pH 5.5): 284.52; (8) ACD/KOC (pH 7.4): 284.52; (9) #H bond acceptors: 3; (10) #H bond donors: 3; (11) #Freely Rotating Bonds: 1; (12) Polar Surface Area: 23.55 Å2; (13) Index of Refraction: 1.671; (14) Molar Refractivity: 47.11 cm3; (15) Molar Volume: 125.8 cm3; (16) Surface Tension: 60.3 dyne/cm; (17) Density: 1.708 g/cm3; (18) Flash Point: 129.7 °C; (19) Enthalpy of Vaporization: 53.02 kJ/mol; (20) Boiling Point: 290.9 °C at 760 mmHg; (21) Vapour Pressure: 0.00202 mmHg at 25 °C; (22) Melting Point: 225-227 °C.

Uses of Urea,N-(4-bromophenyl)-: it is used to produce other chemicals. For example, it is used to produce 4-(4-Bromo-phenyl)-semicarbazide. The reaction occurs with reagent NH2NH2·H2O, NaOH, solvent Ethanol and other condition of heating for 3 hours. The yield is 78 %.



When you are dealing with this chemical, you should be very careful. The gas of this chemical can not be breathed. In addition, you should avoid contacting with skin and eyes.

You can still convert the following datas into molecular structure:
(1) SMILES: Brc1ccc(NC(=O)N)cc1
(2) InChI: InChI=1/C7H7BrN2O/c8-5-1-3-6(4-2-5)10-7(9)11/h1-4H,(H3,9,10,11)
(3) InChIKey: PFQUUCXMPUNRLA-UHFFFAOYAM

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