Welcome to LookChem.com Sign In|Join Free

CAS

  • or
4-Acetylpyridine, also known as 4-acetylpyridine, is an organic compound with the chemical formula C7H7NO. It is a derivative of pyridine, an aromatic heterocyclic compound, with an acetyl group attached to the 4th position. 4-Acetylpyridine is a dark amber liquid with clear light yellow to brownish color and is used in various applications due to its unique chemical properties.

1122-54-9 Suppliers

Post Buying Request

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier
  • 1122-54-9 Structure
  • Basic information

    1. Product Name: 4-Acetylpyridine
    2. Synonyms: METHYL 4-PYRIDYL KETONE;4-ACETYLPYRIDINE;AKOS BBS-00003233;1-(4-pyridinyl)-ethanon;1-(4-Pyridinyl)ethanone;1-pyridin-4-yl-ethanone;4-acetyl-pyridin;4-Pyridyl methyl ketone
    3. CAS NO:1122-54-9
    4. Molecular Formula: C7H7NO
    5. Molecular Weight: 121.14
    6. EINECS: 214-350-9
    7. Product Categories: ACETYLGROUP;Pyridine;Heterocyclic Compounds;CHIRAL CHEMICALS;Heterocycle-Pyridine series
    8. Mol File: 1122-54-9.mol
  • Chemical Properties

    1. Melting Point: 13-16 °C(lit.)
    2. Boiling Point: 212 °C(lit.)
    3. Flash Point: >230 °F
    4. Appearance: brown-yellowish/Liquid
    5. Density: 1.095 g/mL at 25 °C(lit.)
    6. Vapor Pressure: 0.17mmHg at 25°C
    7. Refractive Index: n20/D 1.529(lit.)
    8. Storage Temp.: Store below +30°C.
    9. Solubility: Chloroform, Ethyl Acetate
    10. PKA: pK1: 3.505(+1) (25°C)
    11. Water Solubility: insoluble
    12. BRN: 107629
    13. CAS DataBase Reference: 4-Acetylpyridine(CAS DataBase Reference)
    14. NIST Chemistry Reference: 4-Acetylpyridine(1122-54-9)
    15. EPA Substance Registry System: 4-Acetylpyridine(1122-54-9)
  • Safety Data

    1. Hazard Codes: Xi,Xn
    2. Statements: 36/37/38-36/38-22
    3. Safety Statements: 26-36-37/39
    4. WGK Germany: 3
    5. RTECS: OB5426000
    6. F: 8
    7. TSCA: Yes
    8. HazardClass: N/A
    9. PackingGroup: N/A
    10. Hazardous Substances Data: 1122-54-9(Hazardous Substances Data)

1122-54-9 Usage

Uses

Used in Pharmaceutical Industry:
4-Acetylpyridine is used as an intermediate in the synthesis of nitrogen-containing bicyclic heterocycles and other organic compounds. These compounds are essential in the development of various pharmaceutical products, making 4-acetylpyridine a valuable component in the pharmaceutical industry.
Used in Chemical Synthesis:
4-Acetylpyridine is used as a reactant in the preparation of semicarbazones through its reaction with 2and 4-formylpyridine (H3FoPyS, H4FoPyS). This reaction is crucial in the synthesis of various organic compounds, showcasing the versatility of 4-acetylpyridine in chemical synthesis.
Used in Organic Chemistry Research:
4-Acetylpyridine is used as a starting material in the synthesis of various organic compounds, such as 2-chloro-6-ethoxy-4-β-(2-thienyl)acryloylpyridine, which is obtained by reacting acetylpyridine with thiophene-2-carboxaldehyde. 4-Acetylpyridine can be further reacted with malononitrile in refluxing ethanol in the presence of piperidine as a catalyst to afford the cyanoaminopyrane derivative. The use of 4-acetylpyridine in these reactions highlights its importance in organic chemistry research.
Used in Tobacco Industry:
4-Acetylpyridine is also present in mainstream cigarette smoke, indicating its presence in the tobacco industry. While the specific application in this industry is not explicitly mentioned, it is likely that 4-acetylpyridine plays a role in the chemical composition of cigarette smoke, which may have implications for the tobacco industry's product development and understanding of the chemical components in cigarettes.

Air & Water Reactions

Soluble in water.

Reactivity Profile

4-Acetylpyridine is incompatible with strong oxidizing agents and strong reducing agents. . Amines are chemical bases. They neutralize acids to form salts plus water. These acid-base reactions are exothermic. The amount of heat that is evolved per mole of amine in a neutralization is largely independent of the strength of the amine as a base. Amines may be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen is generated by amines in combination with strong reducing agents, such as hydrides.

Fire Hazard

4-Acetylpyridine is probably combustible.

Check Digit Verification of cas no

The CAS Registry Mumber 1122-54-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,1,2 and 2 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1122-54:
(6*1)+(5*1)+(4*2)+(3*2)+(2*5)+(1*4)=39
39 % 10 = 9
So 1122-54-9 is a valid CAS Registry Number.
InChI:InChI=1/C7H7NO/c1-6(9)7-2-4-8-5-3-7/h2-5H,1H3

1122-54-9 Well-known Company Product Price

  • Brand
  • (Code)Product description
  • CAS number
  • Packaging
  • Price
  • Detail
  • Alfa Aesar

  • (A12015)  4-Acetylpyridine, 98%   

  • 1122-54-9

  • 25g

  • 368.0CNY

  • Detail
  • Alfa Aesar

  • (A12015)  4-Acetylpyridine, 98%   

  • 1122-54-9

  • 100g

  • 800.0CNY

  • Detail
  • Alfa Aesar

  • (A12015)  4-Acetylpyridine, 98%   

  • 1122-54-9

  • 500g

  • 3771.0CNY

  • Detail
  • Vetec

  • (V900567)  4-Acetylpyridine  Vetec reagent grade, 97%

  • 1122-54-9

  • V900567-25G

  • 214.11CNY

  • Detail
  • Vetec

  • (V900567)  4-Acetylpyridine  Vetec reagent grade, 97%

  • 1122-54-9

  • V900567-100G

  • 696.15CNY

  • Detail
  • Aldrich

  • (A21401)  4-Acetylpyridine  97%

  • 1122-54-9

  • A21401-10G

  • 338.13CNY

  • Detail
  • Aldrich

  • (A21401)  4-Acetylpyridine  97%

  • 1122-54-9

  • A21401-100G

  • 826.02CNY

  • Detail

1122-54-9SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 10, 2017

Revision Date: Aug 10, 2017

1.Identification

1.1 GHS Product identifier

Product name 4-Acetylpyridine

1.2 Other means of identification

Product number -
Other names 1-pyridin-4-ylethanone

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Food additives -> Flavoring Agents
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:1122-54-9 SDS

1122-54-9Related news

Crystal structures and IR, NMR and UV spectra of 4-formyl- and 4-Acetylpyridine (cas 1122-54-9) N(4)-methyl- and N(4)-ethylthiosemicarbazones10/01/2019

4-Formyl- and 4-acetylpyridine N(4)-methyl- and N(4)-ethylthiosemicarbazone have been prepared, their structures solved and IR, NMR and UV spectra recorded. Intramolecular and intermolecular hydrogen bonding are both present, but the mode of the intermolecular interaction differs in the four com...detailed

Solvent-controlled construction of manganese(II) complexes with 4-Acetylpyridine (cas 1122-54-9) nicotinoylhydrazone ligand09/27/2019

Three new manganese(II) complexes, namely [Mn(NCS)2(L)2(CH3OH)2]·2CH3OH (1), [Mn(NCS)2(L)2(C2H5OH)2]·2C2H5OH (2) and [Mn(NCS)2(μ-L)2]n (3) (L = 4-acetylpyridine nicotinoylhydrazone) have been synthesized and characterized by elemental analysis, IR spectra, single-crystal and powder X-ray diff...detailed

1122-54-9Relevant articles and documents

Metal- and radical-free aerobic oxidation of heteroaromatic methanes: An efficient synthesis of heteroaromatic aldehydes

Ye, Rongzi,Cao, Yuanjie,Xi, Xiaoxiang,Liu, Long,Chen, Tieqiao

, p. 4220 - 4224 (2019)

A metal-free and radical-free synthesis of heteroaromatic aldehydes was developed through aerobic oxidation of methyl groups in an I2/DMSO/O2 catalytic system. Under the reaction conditions, various functional groups such as methoxy, aldehyde, ester, nitro, amide, and halo (F, Cl, Br) groups were well tolerated. The bioactive compounds like chlorchinaldin derivative and papaverine were also oxidized to the corresponding aldehydes and ketones. This reaction provided an efficient method for preparing the valuable heteroaromatic aldehydes.

Aerobic oxidation of secondary pyridine-derivative alcohols in the presence of carbon-supported noble metal catalysts

Frassoldati, Antonio,Pinel, Catherine,Besson, Michèle

, p. 133 - 138 (2013)

Pt/C and PtBi/C catalysts prepared on a synthetic mesoporous carbon were evaluated in the oxidation of secondary aromatic alcohols (1-phenylethanol, α-methyl or phenyl pyridinemethanol) with air in different dioxane/water mixtures at 100 °C under 10 bar air. The observed activity for all substrates over both types of catalysts was strongly improved with the addition of water to the dioxane solvent as a result of different interactions of the alcohols with the metallic surface in the apolar dioxane solvent or polar aqueous medium. A promoting effect of bismuth was observed for all substrates. However, the reaction rate was also dramatically influenced by the nature of the aromatic moiety, the nature of the α-group, and the position of the substituent on the pyridine moiety. As a general rule the reactivity was meta para ortho and the pyridine derivatives with a phenyl group were more reactive. α-Phenyl-2-pyridinemethanol was totally converted to 2-benzoylpyridine with a selectivity of 96% in dioxane/water 50/50 vol% in the presence of a 2.7% Pt-0.9% Bi/C. Nevertheless, platinum leaching was detected, which could be limited with the promotion by bismuth.

Chain mechanism in the photocleavage of phenacyl and pyridacyl esters in the presence of hydrogen donors

Literak, Jaromir,Dostalova, Anna,Klan, Petr

, p. 713 - 723 (2006)

Excited phenacyl and 3-pyridacyl esters of benzoic acid react with an excess of aliphatic alcohols in a chain reaction process involving hydrogen transfer from the ketyl radical intermediates, leading to benzoic acid in addition to acetophenone and 3-acetylpyridine, respectively, as the byproducts. While the maximum quantum yields reached 4 in both cases, the 2- or 4-pyridacyl ester photoreduction proceeded with the efficiency below 100% under the same conditions. The investigation indicates that a radical coupling between ketyl radicals, both formed from the excited ester by hydrogen abstraction from an alcohol, is accompanied by the elimination of benzoic acid from the ester ketyl radical itself. A partitioning between two reactions was found to be remarkably sensitive to the chromophore nature, such as a position of the nitrogen atom in the pyridacyl moiety, The magnitude of a radical chain process is dependent on the efficiency of consecutive steps that produce free radicals capable of a subsequent ester reduction. The driving force of a possible electron transfer from the ketyl radicals to the ester has been excluded on the basis of cyclic voltametry measurements. The observed quantum yields of photoreduction were found to be diminished by formation of relatively long-lived light absorbing transients, coproducts obtained apparently by secondary photochemical reactions. Additionally, it is shown that basic additives such as pyridine can further increase the efficiency of the photoreduction by a factor of 4. A radical nature of the reduction mechanism was supported by finding a large kinetic chain length of an analogous reaction initiated by free radicals generated thermally yet again when phenacyl or 3-pyridacyl benzoate was used. Both phenacyl and pyridacyl chromophores are pronounced to be valuable as the photoremovable protecting groups when high quantum and chemical yields of carboxylic acid elimination are important, but higher concentrations of the hydrogen atom donors are not destructive for a reaction system or are experimentally impractical.

Transition-Metal-Free Oxidation of Benzylic C-H Bonds of Six-Membered N-Heteroaromatic Compounds

Gao, Xianying,Han, Shuaijun,Zheng, Maolin,Liang, Apeng,Zou, Dapeng,Wu, Yusheng,Wu, Yangjie,Li, Jingya

, p. 4040 - 4049 (2019)

A novel oxidation of benzylic C-H bonds for the synthesis of diverse six-membered N-heteroaromatic aldehydes and ketones has been developed. The obvious advantages of this approach are the simple operation, mild reaction conditions, and without use of toxic reagent and transition metal. The present method should provide a useful access for the synthesis and modification of N-heterocycles.

Methyltrichlorosilane as an effective activation agent for swern oxidation

Wang, Yuanxun,Wang, Chao,Sun, Jian

, p. 2961 - 2965 (2014)

A practical and efficient alternative version of the Swern oxidation has been successfully developed. Methyltrichlorosilane was used as an efficient activator of dimethylsulfoxide, which could oxidize a wide range of primary and secondary alcohols to the corresponding carbonyl compounds with good to excellent yields.

Time-Resolved EPR Studies on the Photochemical Hydrogen Abstraction Reactions and the Excited Triplet States of 4-Substituted Pyridines

Tero-Kubota, Shozo,Akiyama, Kimio,Ikoma, Tadaaki,Ikegami, Yusaku

, p. 766 - 770 (1991)

Photochemical hydrogen abstraction reactions and the lowest excited triplet states taking part in the initial process have been investigated for several pyridine derivatives by using the time-resolved EPR-method.The emissive CIDEP spectrum obtained from the laser photolysis of 4-acetylpyridine (1) in 2-propanol was assigned to the corresponding ketyl radical, proving initial hydrogen abstraction by the carbonyl group.In the cases of 4-cyano-(2) and 4-methoxycarbonyl-(3) pyridines, and 4-pyridinecarboxamide (4), enhanced absorptive CIDEP spectra due to the corresponding 1-hydropyridinyl radicals were observed, suggesting the preferential population to the lowest sublevel in the intersystem crossing.The triplet EPR and phosphorescence spectra observed at 77 K indicate that T1 of 1 is mainly the carbonyl n?* state with small contribution from the ??* state.The T1 states of 2,3, and 4 are considered to be of mixed character between the pyridine 3B1(n?*) and 3A1(??*)states, though the interaction is smaller than that of unsubstituted pyridine because of raising of the ??* state by electron-withdrawing groups.It is proposed that the T1 states of 2-4 have smaller deviation from the planar conformation than the T1 state of unsubstituted pyridine.

Microwave assisted conversion of oximes and semicarbazones to carbonyl compounds using benzyltriphenylphosphonium peroxymonosulfate

Hajipour, Abdol R.,Mallakpour, Shadpour E.,Mohammadpoor-Baltork, Iraj,Adibi, Hadi

, p. 45 - 49 (2003)

Benzyltriphenylphosphonium peroxymonosulfate in the presence of catalytic amounts of bismuth chloride was found to be an efficient and mild reagent for the oxidative cleavage of oximes and semicarbazones to the corresponding carbonyl compounds under microwave irradiation.

Formate-driven catalysis and mechanism of an iridium-copper complex for selective aerobic oxidation of aromatic olefins in water

Shimoyama, Yoshihiro,Kitagawa, Yasutaka,Ohgomori, Yuji,Kon, Yoshihiro,Hong, Dachao

, p. 5796 - 5803 (2021)

A hetero-dinuclear IrIII-CuIIcomplex with two adjacent sites was employed as a catalyst for the aerobic oxidation of aromatic olefins driven by formate in water. An IrIII-H intermediate, generated through formate dehydrogenation, was revealed to activate terminal aromatic olefins to afford an Ir-alkyl species, and the process was promoted by a hydrophobic [IrIII-H]-[substrate aromatic ring] interaction in water. The Ir-alkyl species subsequently reacted with dioxygen to yield corresponding methyl ketones and was promoted by the presence of the CuIImoiety under acidic conditions. The IrIII-CuIIcomplex exhibited cooperative catalysis in the selective aerobic oxidation of olefins to corresponding methyl ketones, as evidenced by no reactivities observed from the corresponding mononuclear IrIIIand CuIIcomplexes, as the individual components of the IrIII-CuIIcomplex. The reaction mechanism afforded by the IrIII-CuIIcomplex in the aerobic oxidation was disclosed by a combination of spectroscopic detection of reaction intermediates, kinetic analysis, and theoretical calculations.

Elemental selenium reactions with 4-ethylpyridine

Gleich, Edward,Warnke, Zygmunt

, p. 13 - 28 (1998)

A reaction of elemental selenium with 4-ethylpyridine has been studied. The process was run in sealed ampuls, within 205 - 240°C, under nitrogen. The reaction products were indentified by GC-MS and 1H NMR. The following products have been identified: (4-pyridyl)hydroxymethyl ketone, (4-pyridyl)methyl ketone, (4-pyridyl)-hydroselenomethyl ketone, 2,3-di(4-pyridyl)butane, 1,3-di(4-pyridyl)butane, 1-(4-pyridyl)-1-[2-(4-ethyl)pyridyl]-ethane, 1-(4-pyridyl)-1-[2-(4-ethenyl)pyridyl]ethane.

Reaction of 3,5-disubstituted 4,5-dihydroisoxazoles with hexacarbonylmolybdenum

Koroleva,Katok,Lakhvich

, p. 1003 - 1008 (2004)

Depending on the reaction conditions and structure of the 5-substituent, reactions of substituted 4,5-dihydroisoxazoles with hexacarbonylmolybdenum involve cleavage of the heteroring at the N-O bond, its aromatization, or/and 1,3-decyclization.

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 1122-54-9