1575-74-2

Basic information

• Product Name: 2-METHYL-4-PENTENOIC ACID
• Synonyms: 2-METHYLPENT-4-ENOIC ACID;2-METHYL-4-PENTENOIC ACID;FEMA 3511;FEMA NUMBER 3511;2-methyl-4-pentenoicaci;2-methylpent-4-en-1-oic acid;2-METHYL-4-PENTENOIC ACID 98+%;4-Pentenoic acid, 2-methyl-
• CAS NO: 1575-74-2
• Molecular Formula: C₆H₁₀O₂
• Molecular Weight: 114.14
• EINECS: 216-404-7
• Product Categories: Pharmaceutical Raw Materials;Alphabetical Listings;Flavors and Fragrances;M-N
• Mol File: 1575-74-2.mol
• Article Data: 30

Chemical Properties

• Melting Point: 17.3°C (estimate)
• Boiling Point: 195 °C(lit.)
• Flash Point: 210 °F
• Appearance: /
• Density: 0.949 g/mL at 25 °C(lit.)
• Vapor Pressure: 0.237mmHg at 25°C
• Refractive Index: n20/D 1.43(lit.)
• Storage Temp.: Inert atmosphere,Room Temperature
• PKA: 4.67±0.10(Predicted)
• Water Solubility: Slightly soluble in water
• BRN: 1720987
• CAS DataBase Reference: 2-METHYL-4-PENTENOIC ACID(CAS DataBase Reference)
• NIST Chemistry Reference: 2-METHYL-4-PENTENOIC ACID(1575-74-2)
• EPA Substance Registry System: 2-METHYL-4-PENTENOIC ACID(1575-74-2)

Safety Data

• Hazard Codes: C
• Statements: 22-34
• Safety Statements: 26-36/37/39-45
• RIDADR: UN 3265 8/PG 2
• WGK Germany: 3
• TSCA: Yes
• HazardClass: 8
• PackingGroup: III
• Hazardous Substances Data: 1575-74-2(Hazardous Substances Data)

Usage

Description

2-METHYL-4-PENTENOIC ACID, also known as 2-methyl-4-pentenoate, is a clear colorless to light yellow liquid with a distinct cheese-like odor. It is an organic compound that is commonly utilized in the flavor and fragrance industry due to its unique properties.

Uses

Used in Flavor Industry:
2-METHYL-4-PENTENOIC ACID is used as a raw material for fruit flavor, particularly enhancing the fruity fragrances in various products. Its natural, cheese-like odor adds a unique and appealing scent to the final product, making it a valuable component in the creation of diverse flavor profiles.
Used in Fragrance Industry:
In the fragrance industry, 2-METHYL-4-PENTENOIC ACID is used as an enhancer of fruity fragrances, contributing to the development of complex and long-lasting scents. Its ability to add depth and character to fragrances makes it a sought-after ingredient in the formulation of perfumes, colognes, and other scented products.

Synthesis Reference(s)

Chemistry Letters, 9, p. 571, 1980Tetrahedron Letters, 21, p. 2181, 1980 DOI: 10.1016/S0040-4039(00)78992-1

InChI:InChI=1/C6H10O2/c1-3-4-5(2)6(7)8/h3,5H,1,4H2,2H3,(H,7,8)/p-1/t5-/m1/s1

Upstream product

• 4441-96-7 3-Methyl-2-carboxy-penten-⁽⁴⁾-saeure 
• 74-83-9 methyl bromide 
• 2049-80-1 (2-propenyl)propanedioic acid diethyl ester 
• 3508-78-9 3-allyl-2,4-pentanedione 
• 5281-63-0 2-Allyl-2-methylmalonic acid 
• 53651-72-2 diethyl allylmethylmalonate 
• 107-05-1 3-chloroprop-1-ene 
• 609-08-5 Diethyl methylmalonate 
• 1823-54-7 α-methyl-β-propiolactone 
• 1826-67-1 vinyl magnesium bromide 
• 802294-64-0 propionic acid 
• 106-95-6 allyl bromide 
• 107-18-6 allyl alcohol 
• 115-80-0 Triethyl orthopropionate 

Downstream Products

• 26118-97-8 2-allyl-3-pentanone 
• 53399-81-8 ethyl 2-methyl-4-pentenoate 
• 1949-38-8 α-Methyl-γ-phenyl-valeriansaeure 
• 33982-85-3 1-(2,3-dihydro-1H-inden-2-yl)ethanone 
• 88708-25-2 C₁₃H₁₆Cl₂O₃Te 
• 107971-37-9 (tetrahydro-4-methyl-5-oxofuran-2-yl)methyl 4-methylbenzenesulfonate 
• 112238-67-2 3-methyl-5-((phenylselanyl)methyl)dihydrofuran-2(3H)-one 
• 145051-45-2 3-benzoyl-1-diazo-3-methyl-2-oxo-5-hexene 
• 792921-52-9 2-methyl-pent-4-enoic acid (2,4,5-trimethoxy-3-tridec-12-enyl-phenyl)-amide 
• 141192-61-2 (+/-)-2-methylpent-4-enoic acid benzylamide 

Relevant articles and documents

Synthesis of S-(+)-4-methyl-3-heptanone, the principal alarm pheromone of Atta texana, and its enantiomer

The principal alarm pheromone of Atta texana S-(+)-4-methyl-3-heptanone, and its enantiomer have been prepared synthetically in high optical purity.

Copper(II)-Catalyzed Alkene Aminosulfonylation with Sodium Sulfinates for the Synthesis of Sulfonylated Pyrrolidones

A copper-catalyzed direct aminosulfonylation of unactivated alkenes with sodium sulfinates for the efficient synthesis of sulfonylated pyrrolidones is described. This reaction features good functional group tolerance and wide substrate scope, providing an efficient and straightforward protocol to access this kind of pyrrolidones. Moreover, preliminary mechanistic investigations disclosed that a free-radical pathway might be invovled in the process.

Direct oxidative lactonization of alkenoic acids mediated solely by NaIO4: Beyond a simple oxidant

Triflic acid-catalyzed direct oxidative lactonization of alkenoic acids mediated solely by NaIO4 without halogen salts is described. Sodium periodate works not only as an oxidant, but also as an active reagent and directly mediates the lactonization. A new cheap, green, and practical oxidative lactonization approach has been developed using NaIO4 as the sole reagent.