2833-21-8

Basic information

• Product Name: (E)-4-OXO-PENT-2-ENOIC ACID
• Synonyms: (E)-4-OXO-PENT-2-ENOIC ACID
• CAS NO: 2833-21-8
• Molecular Formula: C₅H₆O₃
• Molecular Weight: 114.1
• Mol File: 2833-21-8.mol
• Article Data: 2

Chemical Properties

• Appearance: /
• CAS DataBase Reference: (E)-4-OXO-PENT-2-ENOIC ACID(CAS DataBase Reference)
• NIST Chemistry Reference: (E)-4-OXO-PENT-2-ENOIC ACID(2833-21-8)
• EPA Substance Registry System: (E)-4-OXO-PENT-2-ENOIC ACID(2833-21-8)

Safety Data

• Hazardous Substances Data: 2833-21-8(Hazardous Substances Data)

Usage

General Description

(E)-4-OXO-PENT-2-ENOIC ACID, also known as 2-oxopent-4-enoic acid, is a chemical compound with the molecular formula C5H6O3. It is a yellow liquid with a fruity odor, and it is commonly used as an intermediate in the synthesis of various organic compounds. (E)-4-OXO-PENT-2-ENOIC ACID is often used in the production of flavors and fragrances, as well as in the pharmaceutical industry for the synthesis of drugs and medicinal compounds. Its unique chemical structure and properties make it a versatile and valuable compound in various industrial applications.

Upstream product

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• 6742-53-6 (E)-ethyl 4-oxo-2-pentenoate 

Relevant articles and documents

The effect of metal ions on the reaction of hydrogen peroxide with Kraft lignin model compounds

Peroxide bleaching is significantly affected by transition and alkaline earth metals. Isolating the effects of different transition and alkaline earth metals on the reactions of peroxide with different representative lignin structures allows the separation of the positive from the negative contributions of these metal ions. In this work, five monomeric or dimeric phenolic lignin model compounds were treated with alkaline hydrogen peroxide in the absence or presence of Mn2+, Cu2+, Fe3+, and Mg2+. We followed the disappearance of the starting material and the progress of demethylation, radical coupling and oxalic acid formation were followed. Transition metals increased the reactivities of all the lignin model compounds with hydrogen peroxide in the order Mn2+ > Cu2+ > Fe3+, which is the same as the order of activity toward peroxide decomposition while Mg2+ stabilized the system. Demethylation, radical coupling, and oxalic acid formation were all increased by the presence of transition metals in the system and decreased by the addition of Mg2+. The acceleration of the total degree of reaction and of the demethoxylation reactions improves peroxide bleaching, but the increase in the radical coupling reactions can affect the further bleachability of pulp while the increase in the formation of oxalic acid could lead to a greater probability of scaling.