Conditions | Yield |
---|---|
With palladium 10% on activated carbon In methanol Suzuki-Miyaura cross-coupling; Reflux; Under air; | 91% |
1,4-bromoiodobenzene
4-acetylphenylboronic acid
4-bromo-4'-acetylbiphenyl
Conditions | Yield |
---|---|
With potassium carbonate In N,N-dimethyl-formamide at 120℃; for 1h; Suzuki Coupling; | 85% |
Conditions | Yield |
---|---|
With aluminum (III) chloride In dichloromethane at 15℃; for 10.5h; Cooling with ice; | 84.98% |
With aluminium trichloride In dichloromethane at 0℃; for 6h; | 69.6% |
With aluminium trichloride In dichloromethane for 24h; Ambient temperature; | 19% |
Conditions | Yield |
---|---|
according to ref. 9.; | 77% |
Conditions | Yield |
---|---|
With aluminium trichloride In carbon disulfide for 1h; Heating; | 77% |
With aluminium trichloride In carbon disulfide |
1,4-bromoiodobenzene
1-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethanone
4-bromo-4'-acetylbiphenyl
Conditions | Yield |
---|---|
With tetrakis(triphenylphosphine) palladium(0); caesium carbonate In N,N-dimethyl-formamide at 80℃; for 18h; | 75% |
Conditions | Yield |
---|---|
Stage #1: 4-(4-bromophenyl)bromobenzene With tri-n-butyllithium magnesate complex In tetrahydrofuran; hexane at 0℃; for 1.5h; Stage #2: acetic anhydride In tetrahydrofuran; hexane at -20℃; for 1h; | 63% |
4-Bromophenylboronic acid
para-bromoacetophenone
4-bromo-4'-acetylbiphenyl
Conditions | Yield |
---|---|
With potassium carbonate In methanol at 25℃; for 5h; Wavelength; Suzuki-Miyaura Coupling; Inert atmosphere; Irradiation; | 52% |
4-Bromophenylboronic acid
4-Hydroxyacetophenone
4-bromo-4'-acetylbiphenyl
Conditions | Yield |
---|---|
With potassium phosphate; 1,3-bis[(diphenylphosphino)propane]dichloronickel(II); 4-methyl-N-phenyl-N-tosylbenzenesulfonamide In 1,4-dioxane at 110℃; Suzuki-Miyaura Coupling; Inert atmosphere; Schlenk technique; | 10% |
hydrogen cyanide
2-(4'-Bromo-biphenyl-4-yl)-2-hydroxy-propionitrile
4-bromo-4'-acetylbiphenyl
Conditions | Yield |
---|---|
In 1,4-dioxane; water at 30℃; Equilibrium constant; |
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: palladium(II) acetate; potassium acetate / dimethylformamide / 18 h / 80 °C 2: 75 percent / Cs2CO3; Pd(PPh3)4 / dimethylformamide / 18 h / 80 °C View Scheme |
1.4-dibromobenzene
4-methylphenylboronic acid
4-acetylphenylboronic acid
A
(4,4'-dimethyl-1,1'-biphenyl)
B
4-bromo-4'-methylbiphenyl
C
4-bromo-4'-acetylbiphenyl
D
4,4'-diacetylbiphenyl
E
4-acetyl-4'-methylbiphenyl
Conditions | Yield |
---|---|
Stage #1: 1.4-dibromobenzene; 4-acetylphenylboronic acid With (1-tert-butyl-4-{2-[(N,N-dimethylamino)methyl]phenyl}-3-phenyl-1H-1,2,4-triazol-4-ium-5-ide)palladium(II) dichloride for 1h; Suzuki-Miyaura Coupling; Inert atmosphere; Schlenk technique; Stage #2: 4-methylphenylboronic acid for 1h; Inert atmosphere; Schlenk technique; |
4-bromo-4'-acetylbiphenyl
2-bromo-1-(4'-bromo<1,1'-biphenyl>-4-yl)ethanone
Conditions | Yield |
---|---|
With pol(vinylphenyltrimethylammoniumtribromide) resin In methanol; water at 65℃; for 1h; | 96% |
With bromine In dichloromethane at 20℃; for 48h; | 88.6% |
With bromine In acetic acid | 87% |
asaraldehyde
4-bromo-4'-acetylbiphenyl
1-[(4-(4-bromophenyl)phenyl)]-3-(2,4,5-trimethoxyphenyl)prop-2-en-1-one
Conditions | Yield |
---|---|
In methanol at 75℃; Claisen-Schmidt condensation; Ionic liquid; Microwave irradiation; | 96% |
Conditions | Yield |
---|---|
With pol(vinylphenyltrimethylammoniumtribromide) resin at 45℃; for 24h; | 96% |
With N-Bromosuccinimide at 20℃; for 24h; | 92% |
Conditions | Yield |
---|---|
With copper In dimethyl sulfoxide Heating; | 93% |
4-bromo-4'-acetylbiphenyl
αα-dichloromethyl-4'-bromobiphenyl ketone
Conditions | Yield |
---|---|
With 1,3-dichloro-5,5-dimethylhydantoin In acetonitrile at 20℃; for 0.75h; Inert atmosphere; | 93% |
Stage #1: 4-bromo-4'-acetylbiphenyl With ammonium chloride In acetonitrile for 0.0833333h; Stage #2: With 1,3-dichloro-5,5-dimethylhydantoin In acetonitrile at 35℃; for 12h; | 93% |
4-bromo-4'-acetylbiphenyl
4,4''''-dibromo-5''-(4'-bromo-[1,1'-biphenyl]-4-yl)-1,1':4',1'':3'',1''':4''',1''''-quinquephenyl
Conditions | Yield |
---|---|
With boron tri(hydrogen sulphate) In neat liquid at 100℃; for 6h; Green chemistry; | 91% |
With Amberlyst 15 In toluene for 20h; Reflux; | 45% |
With trifluorormethanesulfonic acid In toluene for 14h; Heating; | 38.9% |
4-bromo-4'-acetylbiphenyl
3,4,5-trimethoxy-benzaldehyde
malononitrile
6-(4'-bromobiphenyl-4-yl)-2-imino-4-(3,4,5-trimethoxyphenyl)-1,2-dihydropyridine-3-carbonitrile
Conditions | Yield |
---|---|
With ammonium acetate In ethanol Reflux; | 90% |
4-bromo-4'-acetylbiphenyl
3,4-dichlorobenzaldehyde
malononitrile
6-(4'-bromobiphenyl-4-yl)-4-(3,4-dichlorophenyl)-2-imino-1,2-dihydropyridine-3-carbonitrile
Conditions | Yield |
---|---|
With ammonium acetate In ethanol Reflux; | 90% |
1-iodo-2,2,3,3,4,4,5,5,5-nonafluorobutane
4-bromo-4'-acetylbiphenyl
C18H11F9O
Conditions | Yield |
---|---|
With copper In dimethyl sulfoxide for 24h; Heating; | 89% |
4-bromo-4'-acetylbiphenyl
ethyl bromoacetate
ethyl 3-hydroxy-3-(4'-bromo[1,1'-biphenyl]-4-yl)-butanoate
Conditions | Yield |
---|---|
With zinc; iodine In benzene for 1.5h; Heating / reflux; | 88.9% |
With iodine; zinc In benzene for 1.5h; Heating / reflux; | 88.9% |
4-bromo-4'-acetylbiphenyl
benzamidine monohydrochloride
4-bromo-benzaldehyde
Conditions | Yield |
---|---|
Stage #1: 4-bromo-4'-acetylbiphenyl; 4-bromo-benzaldehyde With sodium hydroxide In ethanol at 20℃; for 8h; Stage #2: benzamidine monohydrochloride With sodium hydroxide In ethanol for 8h; Reflux; | 86% |
4-bromo-4'-acetylbiphenyl
trimethylsilylacetylene
4'-[4-(trimethylsilylethynyl)phenyl]acetophenone
Conditions | Yield |
---|---|
With bis-triphenylphosphine-palladium(II) chloride; copper(l) iodide; triethylamine at 70℃; for 18h; Sonogashira coupling; | 85% |
4-bromo-4'-acetylbiphenyl
3,4,5-trimethoxy-benzaldehyde
ethyl 2-cyanoacetate
6-(4'-bromobiphenyl-4-yl)-2-oxo-4-(3,4,5-trimethoxyphenyl)-1,2-dihydropyridine-3-carbonitrile
Conditions | Yield |
---|---|
With ammonium acetate In ethanol Reflux; | 85% |
4-bromo-4'-acetylbiphenyl
ethyl 2-cyanoacetate
3,4-dichlorobenzaldehyde
6-(4'-bromobiphenyl-4-yl)-4-(3,4-dichlorophenyl)-2-oxo-1,2-dihydropyridine-3-carbonitrile
Conditions | Yield |
---|---|
With ammonium acetate In ethanol Reflux; | 85% |
4-bromo-4'-acetylbiphenyl
4-acetyl-4'-cyano-1,1'-biphenyl
Conditions | Yield |
---|---|
With dichloro[bis{1-(dicyclohexylphosphanyl)piperidine}]palladium; sodium carbonate In 1-methyl-pyrrolidin-2-one at 140℃; for 6h; Inert atmosphere; | 85% |
Conditions | Yield |
---|---|
With ammonium acetate In ethanol Reflux; | 85% |
Conditions | Yield |
---|---|
With copper In dimethyl sulfoxide Heating; | 84% |
4-bromo-4'-acetylbiphenyl
bis(pinacol)diborane
1-(4'-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-[1,1'-biphenyl]-4-yl)ethan-1-one
Conditions | Yield |
---|---|
With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; potassium acetate In N,N-dimethyl-formamide Reflux; | 84% |
The 4'-(4-Bromophenyl)acetophenone, with the CAS registry number 5731-01-1 and EINECS registry number 227-236-9, has the systematic name of 1-(4'-bromobiphenyl-4-yl)ethanone. It is a kind of white or pale brown solid, and belongs to the product categories: Aromatic Halides (substituted); Biphenyl & Diphenyl ether; Electronic Chemicals; Bromine Compounds; Biphenyls (Building Blocks for Liquid Crystals); Building Blocks for Liquid Crystals; Functional Materials; C13 to C14; Carbonyl Compounds; Ketones. And the molecular formula of the chemical is C14H11BrO.
The characteristics of 4'-(4-Bromophenyl)acetophenone are as followings: (1)ACD/LogP: 4.42; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 4.42; (4)ACD/LogD (pH 7.4): 4.42; (5)ACD/BCF (pH 5.5): 1335.87; (6)ACD/BCF (pH 7.4): 1335.87; (7)ACD/KOC (pH 5.5): 6012.02; (8)ACD/KOC (pH 7.4): 6012.02; (9)#H bond acceptors: 1; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 2; (12)Polar Surface Area: 17.07 Å2; (13)Index of Refraction: 1.592; (14)Molar Refractivity: 68.56 cm3; (15)Molar Volume: 202.4 cm3; (16)Polarizability: 27.18×10-24cm3; (17)Surface Tension: 42.3 dyne/cm; (18)Density: 1.359 g/cm3; (19)Flash Point: 76.7 °C; (20)Enthalpy of Vaporization: 61.92 kJ/mol; (21)Boiling Point: 372.1 °C at 760 mmHg; (22)Vapour Pressure: 9.83E-06 mmHg at 25°C.
Preparation of 4'-(4-Bromophenyl)acetophenone: 4'-(4-Bromophenyl)acetophenonecan be prepared by acetyl chloride and 4-bromo-biphenyl. The reaction will need reagent aluminum chloride, and the menstruum CH2Cl2. The reaction time is 6 hours with temperature of 0°C, and the yield is about 69.6%.
Uses of 4'-(4-Bromophenyl)acetophenone: It can react with hydrogen cyanide; copper(1+) salt. This reaction will need reagent N-methylpyrrolidin-2-one. The reaction time is 4 hours with temperature of 185°C, and the yield is about 60%.
You should be cautious while dealing with 4'-(4-Bromophenyl)acetophenone. It irritates to eyes. It is also toxic to aquatic organisms, and may cause long-term adverse effects in the aquatic environment. Therefore, you had better take the following instructions: Avoid release to the environment. Refer to special instructions safety data sheet; Wear suitable protective clothing, gloves and eye/face protection; In case of contacting with eyes, rinse immediately with plenty of water and seek medical advice.
Addtionally, the following datas could be converted into the molecular structure:
(1)SMILES: Brc2ccc(c1ccc(C(=O)C)cc1)cc2;
(2)InChI: InChI=1/C14H11BrO/c1-10(16)11-2-4-12(5-3-11)13-6-8-14(15)9-7-13/h2-9H,1H3;
(3)InChIKey: UUVKNCRMWPNBNM-UHFFFAOYAY-N;
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