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词条 Pentanenitrile
释义

  1. Production

  2. Properties

  3. Biology

  4. References

{{Chembox
| Verifiedfields =
| Watchedfields =
| verifiedrevid =
| Reference =
| ImageFile1 = Pentanenitrile.svg
| IUPACName =
| OtherNames = {{Unbulleted list|Valeronitrile|n-valeronitrile|1-Cyanobutane|
}}
|Section1={{Chembox Identifiers
| CASNo = 110-59-8
| CASNo_Ref = {{cascite|correct|CAS}}
| PubChem =
| ChemSpiderID = 7770
| ChemSpiderID_Ref = {{chemspidercite|changed|chemspider}}
| EINECS = 203-781-8
| MeSHName =
| ChEBI =
| ChEBI_Ref = {{ebicite|changed|EBI}}
| RTECS =
| Beilstein =
| ChEMBL = 1503158
| UNNumber = 3273
| UNII = X44H3R47D4
| SMILES = CCCCC#N
| StdInChI = 1S/C5H9N/c1-2-3-4-5-6/h2-4H2,1H3
| StdInChI_Ref = {{stdinchicite|changed|chemspider}}
| StdInChIKey = RFFFKMOABOFIDF-UHFFFAOYSA-N
| StdInChIKey_Ref = {{stdinchicite|changed|chemspider}}
}}
|Section2={{Chembox Properties
| C=5 | H=9 | N=1
| Appearance = Colorless liquid
| Odor =
| Density = 0.8008
| MeltingPtC = -96.2
| BoilingPtK = 414
| VaporPressure = 5 mm Hg
| CriticalT = 610.3 K
| CriticalP = 35.80 bar
| Solubility = insoluble
| SolubleOther = soluble in benzene, acetone, ether
| HenryConstant =
| RefractIndex = 1.3949
| MagSus =
| Dipole =
}}
|Section3={{Chembox Thermochemistry
| DeltaHf =
| DeltaHc =
| HeatCapacity =
}}
|Section4={{Chembox Hazards
| GHSPictograms = {{GHS02}} {{GHS skull and crossbones}}{{GHS07}}
| GHSSignalWord = DANGER
| HPhrases = {{H-phrases|226|301|302}}
| PPhrases = {{P-phrases|210|233|240|241|242|243|264|270|280|301+310|301+312|303+361+353|321|330|370+378|403+235|405|501}}
| NFPA-H = 3
| NFPA-F = 3
| NFPA-R = 0
| FlashPtC = 40
| AutoignitionPtC =
| ExploLimits =
| LD50 = 191 mg/kg fat[1]
| PEL =
| IDLH =
| REL =
}}
|Section5={{Chembox Related
| OtherFunction_label = alkanenitriles
| OtherFunction = {{Unbulleted list|Isobutyronitrile|Propanenitrile|Malononitrile|Pivalonitrile|Succinonitrile|Glutaronitrile|Butyronitrile|Pivalonitrile}}
| OtherCompounds =
}}
}}

Pentanenitrile, valeronitrile or butyl cyanide is a nitrile with the formula C4H9CN. This can be written BuCN, with Bu representing n-butyl.

Production

Pentanenitrile can be produced by heating 1-chlorobutane with sodium cyanide in dimethyl sulfoxide. This reaction takes about 20 minutes, keeping the temperature below 160 °C. The yield is about 93%.[1]

Another way to get the substance is by heating butyraldehyde with hydroxylamine.[2]

Pentanenitrile is contained in bone oil.[3]

Properties

The pentanenitrile molecule is flexible and can adopt a number of different conformers, so that it will naturally be a mixture. These conformers are called anti-anti (30%), anti-gauche (46%), gauche-anti, gauche-gauche-cis, and gauche-gauche-trans.[4]

Biology

Pentanenitrile is toxic to animals, and produces its action by the liberation of cyanide by cytochrome P450. The cyanide is detoxifided and excreted in urine as thiocyanate.[5]

Pentanenitrile is found in Brassica species and varieties such as broccoli.

Pentanenitrile is hydrolyzed to valeric acid by the fungi Gibberella intermedia,[6] Fusarium oxysporum, and Aspergillus niger in which it induces production of the nitrilase enzyme.[7]

References

1. ^{{cite journal|last1=Smiley|first1=Robert|last2=Arnold|first2=Charles|title=Notes- Aliphatic Nitriles from Alkyl Chlorides|journal=The Journal of Organic Chemistry|date=February 1960|volume=25|issue=2|pages=257–258|doi=10.1021/jo01072a600}}
2. ^{{cite journal|title=Red mud catalyzed one-pot synthesis of nitriles from aldehydes and hydroxylamine hydrochloride under microwave irradiation|journal=Arkivoc|date=5 October 2007|volume=2007|issue=15|pages=162|doi=10.3998/ark.5550190.0008.f16}}
3. ^{{cite book|title=Toxic Substances Control Act (TSCA) Chemical Substance Inventory|date=1979|publisher=the Office|url=https://books.google.com.au/books?id=2psDsfJ3GtoC&pg=RA1-PA2|language=en}}
4. ^{{cite journal|last1=Crowder|first1=G.A.|title=Conformational analysis of n-butyl cyanide|journal=Journal of Molecular Structure: THEOCHEM|date=October 1989|volume=200|pages=235–244|doi=10.1016/0166-1280(89)85056-0}}
5. ^{{cite book|last1=Buhler|first1=D. R.|last2=Reed|first2=D. J.|title=Nitrogen and Phosphorus Solvents|date=2013|publisher=Elsevier|isbn=9781483290201|pages=359–362|url=https://books.google.com.au/books?id=uAQhBQAAQBAJ&pg=PA359|language=en}}
6. ^{{cite journal|last1=Gong|first1=Jin-Song|last2=Li|first2=Heng|last3=Zhu|first3=Xiao-Yan|last4=Lu|first4=Zhen-Ming|last5=Wu|first5=Yan|last6=Shi|first6=Jing-Song|last7=Xu|first7=Zheng-Hong|last8=Yun|first8=Sung-Hwan|title=Fungal His-Tagged Nitrilase from Gibberella intermedia: Gene Cloning, Heterologous Expression and Biochemical Properties|journal=PLoS ONE|date=30 November 2012|volume=7|issue=11|pages=e50622|doi=10.1371/journal.pone.0050622}}{{open access}}
7. ^{{cite journal|last1=Kaplan|first1=Ondřej|last2=Vejvoda|first2=Vojtěch|last3=Charvátová-Pišvejcová|first3=Andrea|last4=Martínková|first4=Ludmila|title=Hyperinduction of nitrilases in filamentous fungi|journal=Journal of Industrial Microbiology & Biotechnology|date=15 August 2006|volume=33|issue=11|pages=891–896|doi=10.1007/s10295-006-0161-9}}

1 : Nitriles

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