“1,4-Dichloro-2-nitrobenzene”的意思、由来-开放百科全书

词条

1,4-Dichloro-2-nitrobenzene

释义

References

{{Chembox
| ImageFile = C6H3Cl2NO2.png
| ImageSize =
| ImageAlt =
| PIN = 1,4-Dichloro-2-nitrobenzene
| OtherNames = Nitro-P-dichlorobenzene
|Section1={{Chembox Identifiers
| CASNo = 89-61-2
| PubChem = 6977
| RTECS = CZ5260000
| UNNumber = 1578
| UNII = IY18G50FF4
| ChEMBL = 354761
| ChemSpiderID = 21111865
| SMILES = c1cc(c(cc1Cl)[N+](=O)[O-])Cl
| StdInChI = 1S/C6H3Cl2NO2/c7-4-1-2-5(8)6(3-4)9(10)11/h1-3H
| StdInChIKey = RZKKOBGFCAHLCZ-UHFFFAOYSA-N
| MeSHName = C503932 }}
|Section2={{Chembox Properties
| Formula = C₆H₃Cl₂NO₂
| MolarMass =192.00
| Appearance = yeloow flakes
| Density = 1.67
| MeltingPt = 52-54 °C
| BoilingPt = 266-269 °C
| Solubility = 95 mg/l }}
|Section3={{Chembox Hazards
| MainHazards =
| FlashPtC = 135
| AutoignitionPtC = 465
| GHSPictograms = {{GHS07}}{{GHS08}}{{GHS09}}
| GHSSignalWord = Danger
| HPhrases = {{H-phrases|302|336|351|361|370|372|373|400|410}}
| PPhrases = {{P-phrases|201|202|260|261|264|270|271|273|281|301+312|304+340|307+311|308+313|312|314|321|330|391|403+233|405|501}}
}}
}}

1,4-Dichloro-2-nitrobenzene is an organic compound with the formula C₆H₃Cl₂NO₂. One of several isomers of dichloronitrobenzene, it is a colorless solid that is insoluble in water. It is produced by nitration of 1,4-dichlorobenzene. It is a precursor to many derivatives of commercial interest. Hydrogenation gives 1,4-dichloroaniline. Nucleophiles displace the chloride adjacent to the nitro group: ammonia gives the aniline derivative, aqueous base gives the phenol derivative, and methoxide gives the anisole derivative. These compounds are respectively 4-chloro-2-nitroaniline, 4-chloro-2-nitrophenol, and 4-chloro-2-nitroanisole.^[1] Isomeric with this compound is 1,2-dichloro-4-nitrobenzene.

References

1. ^Gerald Booth (2007). "Nitro Compounds, Aromatic" in Ullmann's Encyclopedia of Industrial Chemistry Wiley-VCH, Weinheim, 2005.

2 : Nitrobenzenes|Chloroarenes

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