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Cas Database |
| Name |
2,4'-Dichloroacetophenone |
EINECS | 213-323-9 |
| CAS No. | 937-20-2 | Density | 1.31 g/cm3 |
| PSA | 17.07000 | LogP | 2.76150 |
| Solubility | N/A | Melting Point |
100-102 °C(lit.) |
| Formula | C8H6Cl2O | Boiling Point | 270 °C at 760 mmHg |
| Molecular Weight | 189.041 | Flash Point | 119.1 °C |
| Transport Information | N/A | Appearance | white to off-white crystalline powder |
| Safety | 26-36-37/39 | Risk Codes | 36/37/38 |
| Molecular Structure |
|
Hazard Symbols |
 Xi
|
| Synonyms |
4-Chloroaphenacyl chloride;2,4-Dichloro Acetophenone;2-chloro-4-chloroacetophenone;2-chloro-4’-chloroacetophenone;Ethanone, 2-chloro-1- (4-chlorophenyl)-;ethanone, 2-chloro-1-(4-chlorophenyl)-;.alpha.-Chloro-p-chloroacetophenone;2-chloro-1-(4-chlorophenyl)ethanone;Acetophenone, 2,4-dichloro-;4-Chlorophenacyl chloride;p-Chlorophenacyl chloride;.omega.-Chloro-p-chloroacetophenone; |
Article Data | 76 |
2,4'-Dichloroacetophenone Synthetic route
| Conditions | Yield |
|---|---|
| With 1,3-dichloro-5,5-dimethylhydantoin; silica gel In methanol for 1h; Reflux; | 98% |
| With N,N,N-trimethylbenzenemethanaminium dichloroiodate In methanol; 1,2-dichloro-ethane for 6h; Heating; | 97% |
| With tetrachlorosilane; urea hydrogen peroxide adduct In dichloromethane at 0℃; for 1h; | 93% |
| Conditions | Yield |
|---|---|
| With [2,2]bipyridinyl; copper(l) chloride In 1,2-dichloro-ethane for 3h; Heating; | 93% |
- 80-11-5
N-methyl-N-nitrosotoluene-p-sulfonamide
- 122-01-0
4-chloro-benzoyl chloride
- 937-20-2
p-chlorophenacyl chloride
| Conditions | Yield |
|---|---|
| With potassium hydroxide In tetrahydrofuran; methanol; water at 20℃; Arndt-Eistert Homologation; | 93% |
- 33491-02-0
1-chloro-4-(chloroethynyl)benzene
- 937-20-2
p-chlorophenacyl chloride
| Conditions | Yield |
|---|---|
| With water In 1,2-dichloro-ethane at 20℃; for 14h; | 93% |
| With water; silver fluoride; trifluoroacetic acid at 40℃; for 6h; Green chemistry; | 88% |
| With tetrafluoroboric acid; water In 2,2,2-trifluoroethanol at 80℃; for 10h; | 87% |
| With indium(III) triflate; water In acetic acid at 100℃; Sealed tube; | 79% |
| Conditions | Yield |
|---|---|
| With magnesium(II) chloride hexahydrate; oxygen; lithium perchlorate; manganese(ll) chloride In dichloromethane; acetone at 40℃; for 40h; Electrochemical reaction; | 93% |
| With magnesium(II) chloride hexahydrate; cobalt(II) chloride hexahydrate; oxygen; lithium perchlorate In dichloromethane; acetone at 40℃; for 12h; Electrolysis; Sealed tube; chemoselective reaction; | 77% |
| With tris(2,2'-bipyridyl)ruthenium dichloride; chloroform; [bis(acetoxy)iodo]benzene In chloroform at 20℃; for 12h; Irradiation; | 77% |
| With iron(III) chloride; potassium chloride; oxygen; toluene-4-sulfonic acid In tert-butyl methyl ether at 20℃; Irradiation; Green chemistry; | 49% |
- 676486-15-0
1-(4-chlorophenyl)-2-(dimethyl(oxo)-λ6-sulfanylidene)ethan-1-one
- 937-20-2
p-chlorophenacyl chloride
| Conditions | Yield |
|---|---|
| With hydrogenchloride In tetrahydrofuran; 1,4-dioxane at 20 - 70℃; for 16h; | 92% |
| With hydrogenchloride In tetrahydrofuran; 1,4-dioxane at 20 - 70℃; | 78% |
| Conditions | Yield |
|---|---|
| With methanol; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; trichloroisocyanuric acid In dichloromethane at 20℃; for 2h; Reagent/catalyst; | 87% |
| With N,N-dichloro-p-toluenesulfonamide In acetonitrile at 55℃; for 3.5h; | 79% |
| With hydrogenchloride; 3-chloro-benzenecarboperoxoic acid In N,N-dimethyl-formamide at 25℃; for 6h; | 84 % Chromat. |
| Conditions | Yield |
|---|---|
| With methanol; 2,2,6,6-Tetramethyl-1-piperidinyloxy free radical; trichloroisocyanuric acid In dichloromethane at 20℃; for 2h; Reagent/catalyst; | 87% |
| Conditions | Yield |
|---|---|
| aluminium trichloride In carbon disulfide for 2h; Heating; | 84% |
| With carbon disulfide; aluminium trichloride | |
| With aluminium trichloride In carbon disulfide |
| Conditions | Yield |
|---|---|
| With S4N4*SbCl5 In toluene for 3.5h; Heating; | 81% |
| With sodium chloride In acetonitrile | |
| With N-benzyl-N,N,N-triethylammonium chloride; benzenesulfonyl chloride In water at 20℃; for 1.3h; Solvent; Green chemistry; |
2,4'-Dichloroacetophenone Chemical Properties
IUPAC Name: 2-Chloro-1-(4-chlorophenyl)ethanone
Following is the structure of 2,4'-Dichloroacetophenone (CAS NO.937-20-2):
Empirical Formula: C8H6Cl2O
Molecular Weight: 189.0386 g/mol
EINECS: 213-323-9
Index of Refraction: 1.55
Molar Refractivity: 46.02 cm3
Molar Volume: 144.2 cm3
Density: 1.31 g/cm3
Flash Point: 119.1 °C
Melting point 100-102 °C
Surface Tension: 41.7 dyne/cm
Enthalpy of Vaporization: 50.82 kJ/mol
Boiling Point: 270 °C at 760 mmHg
Vapour Pressure: 0.00702 mmHg at 25 °C
Product Categories of 2,4'-Dichloroacetophenone (CAS NO.937-20-2): Benzene series; C7 to C8; Carbonyl Compounds; Ketones
Solubility in water of 2,4'-Dichloroacetophenone (CAS NO.937-20-2): Insoluble
Canonical SMILES: C1=CC(=CC=C1C(=O)CCl)Cl
InChI: InChI=1S/C8H6Cl2O/c9-5-8(11)6-1-3-7(10)4-2-6/h1-4H,5H2
InChIKey: FWDFNLVLIXAOMX-UHFFFAOYSA-N
2,4'-Dichloroacetophenone Toxicity Data With Reference
2,4'-Dichloroacetophenone (CAS NO.937-20-2) hasn't been listed as a carcinogen by ACGIH, IARC, NTP, or CA Prop 65. And the toxicological properties have not been fully investigated.
2,4'-Dichloroacetophenone Safety Profile
Hazard Codes: 
Xi
Risk Statements: 36/37/38
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36-37/39
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.
WGK Germany: 3
2,4'-Dichloroacetophenone Specification
2,4'-Dichloroacetophenone , its cas register number is 937-20-2. It also can be called 2-Chloro-1-(4-chlorophenyl)ethanone ; Ethanone, 2-chloro-1-(4-chlorophenyl)- .
2,4'-Dichloroacetophenone (CAS NO.937-20-2) is hazardous, so the first aid measures and others should be known. Such as: When on the skin: first, should flush skin with plenty of water immediately for at least 15 minutes while removing contaminated clothing. Secondly, get medical aid. Or in the eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Then get medical aid soon. While, it's inhaled: Remove from exposure and move to fresh air immediately. Give artificial respiration while not breathing. When breathing is difficult, give oxygen. And as soon as to get medical aid. Then you have the ingesting of the product : Wash mouth out with water, and get medical aid immediately.
2,4'-Dichloroacetophenone (CAS NO.937-20-2) should avoid the condition like incompatible materials, dust generation. It is not compatible with strong oxidizing agents. And also prevent it to broken down into hazardous decomposition products: hydrogen chloride, carbon monoxide, carbon dioxide. However, its hazardous polymerization has not been reported. Store in a tightly closed container. In addition, 2,4'-Dichloroacetophenone (CAS NO.937-20-2) should be stored in a cool, dry, well-ventilated area away from incompatible substances.
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