Cas no 4743-96-8 (4-Pentenoic acid, 2-methylene-)

4-Pentenoic acid, 2-methylene- is a reactive unsaturated carboxylic acid characterized by its terminal double bond and methylene group adjacent to the carboxyl functionality. This structure imparts versatility in organic synthesis, particularly in cycloaddition reactions, polymer modifications, and as a precursor for specialty chemicals. The compound’s bifunctional nature allows for selective transformations, enabling applications in pharmaceuticals, agrochemicals, and advanced material synthesis. Its high reactivity with nucleophiles and electrophiles makes it valuable for cross-coupling and functionalization processes. The product is typically handled under controlled conditions due to its sensitivity to polymerization. Suitable for research and industrial use, it offers a balance of stability and reactivity for tailored synthetic routes.
4-Pentenoic acid, 2-methylene- structure
4743-96-8 structure
Product Name:4-Pentenoic acid, 2-methylene-
CAS No:4743-96-8
MF:C6H8O2
MW:112.126522064209
CID:5994032
PubChem ID:11297946
Update Time:2025-05-30

4-Pentenoic acid, 2-methylene- Chemical and Physical Properties

Names and Identifiers

    • 4-Pentenoic acid, 2-methylene-
    • 2-methylidenepent-4-enoic acid
    • 2-methylenepent-4-enoic acid
    • SCHEMBL83312
    • 4743-96-8
    • EN300-7163295
    • AKOS006378589
    • SCHEMBL9191987
    • Inchi: 1S/C6H8O2/c1-3-4-5(2)6(7)8/h3H,1-2,4H2,(H,7,8)
    • InChI Key: CRJSAYNCRPTWST-UHFFFAOYSA-N
    • SMILES: C(O)(=O)C(=C)CC=C

Computed Properties

  • Exact Mass: 112.052429494g/mol
  • Monoisotopic Mass: 112.052429494g/mol
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 1
  • Hydrogen Bond Acceptor Count: 2
  • Heavy Atom Count: 8
  • Rotatable Bond Count: 3
  • Complexity: 125
  • Covalently-Bonded Unit Count: 1
  • Defined Atom Stereocenter Count: 0
  • Undefined Atom Stereocenter Count : 0
  • Defined Bond Stereocenter Count: 0
  • Undefined Bond Stereocenter Count: 0
  • XLogP3: 1.5
  • Topological Polar Surface Area: 37.3?2

Experimental Properties

  • Density: 0.9964 g/cm3
  • Melting Point: 159-161 °C
  • Boiling Point: 99-103 °C(Press: 26 Torr)
  • pka: 4.40±0.11(Predicted)

4-Pentenoic acid, 2-methylene- Pricemore >>

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Additional information on 4-Pentenoic acid, 2-methylene-

Exploring the Properties and Applications of 4-Pentenoic acid, 2-methylene- (CAS No. 4743-96-8)

4-Pentenoic acid, 2-methylene- (CAS No. 4743-96-8) is a specialized organic compound that has garnered significant attention in the fields of synthetic chemistry, pharmaceuticals, and material science. This unsaturated carboxylic acid, characterized by its unique methylene group and pentenoic acid backbone, serves as a versatile intermediate in various chemical reactions. Its molecular structure, featuring both a carboxylic acid functional group and a reactive double bond, makes it a valuable building block for synthesizing more complex molecules.

In recent years, the demand for 4-Pentenoic acid, 2-methylene- has surged due to its role in the development of bioactive compounds and polymeric materials. Researchers are particularly interested in its potential applications in green chemistry and sustainable synthesis, aligning with the global push toward environmentally friendly industrial processes. The compound's ability to participate in Michael addition reactions, polymerization, and cross-coupling reactions further enhances its utility in modern chemical research.

One of the most frequently asked questions about 4-Pentenoic acid, 2-methylene- revolves around its synthesis methods and purification techniques. Advanced procedures such as catalytic hydrogenation and distillation under reduced pressure are commonly employed to obtain high-purity samples. Additionally, its spectroscopic properties (e.g., NMR, IR, and mass spectrometry data) are well-documented, aiding in its identification and quality control.

The compound's relevance extends to the pharmaceutical industry, where it is explored as a precursor for drug candidates targeting inflammatory diseases and metabolic disorders. Its structural flexibility allows for modifications that can enhance bioavailability and therapeutic efficacy. Furthermore, its incorporation into biodegradable polymers has opened new avenues for medical device coatings and controlled-release formulations.

From an industrial perspective, 4-Pentenoic acid, 2-methylene- is increasingly used in the production of specialty chemicals and flavoring agents. Its mild, fruity odor makes it a candidate for food-grade additives, though rigorous safety assessments are required. The compound's thermal stability and solubility profile also make it suitable for high-performance coatings and adhesives.

Environmental and regulatory considerations are critical when working with 4-Pentenoic acid, 2-methylene-. While it is not classified as a hazardous substance, proper handling protocols and waste disposal methods must be followed to minimize ecological impact. Recent studies have focused on optimizing catalytic processes to reduce energy consumption and byproduct formation during its synthesis.

In conclusion, 4-Pentenoic acid, 2-methylene- (CAS No. 4743-96-8) is a multifaceted compound with broad applications across scientific and industrial domains. Its unique chemical properties, combined with growing interest in sustainable chemistry and advanced materials, ensure its continued relevance in research and development. As innovation progresses, this compound is poised to play a pivotal role in addressing contemporary challenges in healthcare, materials science, and environmental sustainability.

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