4635-87-4 Usage
Description
3-Pentenenitrile, also known as 3-Cyano-1-pentene, is a colorless to amber liquid that is less dense than water. It has a flash point of 104°F and a boiling point of 296°F. 3-Pentenenitrile is generally stable and not prone to polymerization. However, it may be toxic through skin absorption, inhalation, or ingestion, and prolonged exposure can lead to delayed cyanide poisoning. It is important to avoid direct contact with its vapors, mists, or liquid. During combustion, 3-Pentenenitrile may produce cyanide gas and carbon monoxide. It is primarily used in the production of various organic chemicals.
Uses
Used in Chemical Synthesis:
3-Pentenenitrile is used as a building block for the synthesis of various organic chemicals. Its unique structure, which includes a nitrile group and a pentene chain, makes it a versatile starting material for the creation of a wide range of compounds.
Used in Pharmaceutical Industry:
In the pharmaceutical industry, 3-Pentenenitrile is used as an intermediate in the synthesis of various pharmaceutical compounds. Its reactivity and functional groups allow for the development of new drugs with potential therapeutic applications.
Used in Agrochemical Industry:
3-Pentenenitrile is also utilized in the agrochemical industry for the production of pesticides and other agricultural chemicals. Its properties make it suitable for the development of compounds that can help protect crops from pests and diseases.
Used in Polymer Industry:
In the polymer industry, 3-Pentenenitrile can be used as a monomer in the production of specialty polymers. Its nitrile group and pentene chain can be incorporated into polymer structures, providing unique properties and applications for various materials.
Used in Flavor and Fragrance Industry:
3-Pentenenitrile is used as a starting material for the synthesis of various compounds used in the flavor and fragrance industry. Its ability to be modified and functionalized allows for the creation of a wide range of aroma compounds.
Used in Dye and Pigment Industry:
In the dye and pigment industry, 3-Pentenenitrile is used as a precursor for the synthesis of various dyes and pigments. Its chemical properties enable the development of new colorants with improved performance characteristics.
Overall, 3-Pentenenitrile is a valuable compound with a wide range of applications across different industries, including chemical synthesis, pharmaceuticals, agrochemicals, polymers, flavors and fragrances, and dyes and pigments. Its versatility and unique properties make it an essential component in the development of new and innovative products.
Air & Water Reactions
Highly flammable.
Reactivity Profile
Nitriles, such as 3-PENTENENITRILE, may polymerize in the presence of metals and some metal compounds. They are incompatible with acids; mixing nitriles with strong oxidizing acids can lead to extremely violent reactions. Nitriles are generally incompatible with other oxidizing agents such as peroxides and epoxides. The combination of bases and nitriles can produce hydrogen cyanide. Nitriles are hydrolyzed in both aqueous acid and base to give carboxylic acids (or salts of carboxylic acids). These reactions generate heat. Peroxides convert nitriles to amides. Nitriles can react vigorously with reducing agents. Acetonitrile and propionitrile are soluble in water, but nitriles higher than propionitrile have low aqueous solubility. They are also insoluble in aqueous acids.
Health Hazard
Inhalation or contact with material may irritate or burn skin and eyes. Fire may produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution.
Fire Hazard
3-PENTENENITRILE is combustible.
Check Digit Verification of cas no
The CAS Registry Mumber 4635-87-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,6,3 and 5 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 4635-87:
(6*4)+(5*6)+(4*3)+(3*5)+(2*8)+(1*7)=104
104 % 10 = 4
So 4635-87-4 is a valid CAS Registry Number.
InChI:InChI=1/C5H7N/c1-2-3-4-5-6/h2-3H,4H2,1H3/b3-2-
4635-87-4Relevant articles and documents
A process for preparing 3 - pentenenitrile method
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Page/Page column 9-13, (2019/05/16)
The invention discloses a 2 - methyl - 2 - buten preparation 3 - pentenenitrile method, said method comprising: the 2 - methyl - 2 - buten in catalyst and double-[...] ligand under catalytic action of the isomerization reaction, in order to obtain 3 - pentenenitrile, wherein said catalyst is a transition metal with low monodentate phosphorus ligand complex. The method is simple in operation, easily available raw materials, high yield.
Process for producing pentenenitriles
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Page/Page column 26, (2018/04/20)
The invention provides methods useful in the industrial scale process for hydrocyanation of butadiene to adiponitrile for recycle of unwanted byproduct 2-methyl-3-butenenitrile (2M3BN) by conversion to process intermediate pentenenitrile. The invention provides a process for generating catalysts useful for carrying out the hydrocyanation of butadiene to adiponitrile, the process comprising contacting the 2M3BN and a solution of a nickel-ligand catalyst in cis-2-pentenenitrile (cis-2PN), trans-2-pentenenitrile (trans-2PN), or a mixture thereof. The improved methods of the invention can provide improved catalyst solubility for bidentate ligands without a requirement for a Lewis acid catalyst promoter such as zinc chloride to be present.
A using 2-methyl-3-crotonization of a method of isomerizing hexanedinitrile;
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Paragraph 0022; 0023, (2017/02/24)
The invention discloses a method for synthesizing adiponitrile by isomerization liquid of 2-methyl-3-crotononitrile. The method comprises steps of (1) carrying out isomerization reaction on 2-methyl-3-crotononitrile in the presence of zero valent nickel catalyst, phosphorus-containing ligand and lewis acid so as to generate 3-pentenenitrile; (2) mixing the isomerization liquid obtained in step (1) with hydrocyanic acid for reaction so as to generate the product containing adiponitrile. In the presence of zero valent nickel catalyst, phosphorus-containing ligand and lewis acid, the 2-methyl-3-crotononitrile generates 3-pentenenitrile through isomerization reaction; as the composition of the isomerization liquid is relatively the same as the material for secondary hydrocyanic reaction, the method directly adopts the isomerization liquid and hydrocyanic acid for reaction so as to synthesize adiponitrile. Therefore, the method saves the step of separating and purifying 3-pentenenitrile from the isomerization liquid, thus greatly lowering equipment cost and production cost, and reducing poisoning caused by zero valent nickel catalyst and phosphorus-containing ligand.
