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Methacrolein

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Identification
Molecular formula
C5H8O
CAS number
78-85-3
IUPAC name
2-methylbut-2-enal
State
State

At room temperature, methacrolein is a liquid. Due to its low boiling point, it is quite volatile and releases vapors that can be irritating.

Melting point (Celsius)
-76.00
Melting point (Kelvin)
197.15
Boiling point (Celsius)
67.00
Boiling point (Kelvin)
340.15
General information
Molecular weight
70.12g/mol
Molar mass
70.0910g/mol
Density
0.8469g/cm3
Appearence

Methacrolein is a clear, colorless liquid with a sharp, pungent odor, similar to that of acrolein. It is a volatile compound and should be handled with care as it is prone to polymerization.

Comment on solubility

Solubility of 2-methylbut-2-enal

2-methylbut-2-enal, also known as isoamyl methyleneacrolein, is an interesting compound when it comes to its solubility characteristics.

This compound exhibits varying degrees of solubility in different solvents:

  • Water: 2-methylbut-2-enal is weakly soluble in water. Its solubility is influenced by the presence of its aliphatic structure, which tends to disrupt hydrogen bonding in water.
  • Organic Solvents: It is highly soluble in common organic solvents such as ethanol, ether, and chloroform. This is due to its non-polar characteristics derived from carbon chains.

To sum up, the solubility profile of 2-methylbut-2-enal can be summarized as:

  1. Weak solubility in water
  2. Good solubility in organic solvents

Understanding the solubility of compounds like 2-methylbut-2-enal is crucial for their application in various chemical processes and industries.

Interesting facts

Interesting Facts about 2-methylbut-2-enal

2-methylbut-2-enal, also known as isovaleraldehyde, is a fascinating compound in the world of organic chemistry. This aldehyde showcases some unique characteristics and applications that make it worthy of discussion:

  • Structure and Isomerism: The structure of 2-methylbut-2-enal features a double bond in its carbon chain, making it an example of an alkenal. This leads to its ability to exhibit geometric isomerism, potentially affecting its reactivity and interaction with other molecules.
  • Aromatic Properties: Known for its pleasant odor, 2-methylbut-2-enal is often associated with a sweet, fruity scent. As a result, it finds usage in the flavor and fragrance industries, adding depth to various formulations.
  • Biological Relevance: This compound plays a role in the biosynthesis of certain natural products. It can act as a precursor to compounds that may possess biological activity, highlighting its significance in natural product chemistry.
  • Reactivity: The presence of both an aldehyde functional group and a double bond opens up avenues for a variety of reactions, including nucleophilic addition and condensation reactions. This reactivity is a key point of interest for chemists exploring synthetic pathways.
  • Synthesis Routes: 2-methylbut-2-enal can be synthesized through various methods, including the use of carbonylations or reductions of more complex compounds. Understanding these synthesis routes provides insights into organic synthesis strategies and methodologies.

Overall, 2-methylbut-2-enal is more than just a simple aldehyde; its interesting properties and reactivities make it a valued compound in both organic chemistry and industrial applications. As scientists continue to explore and utilize this compound, it paves the way for further innovations and discoveries.

Synonyms
2-methyl-but-2-enal
Crotonaldehyde, 2-methyl-
(e)-2-methyl-2-butenal
trans-2-Methylcrotonaldehyde
100365-71-7
Butenal, 2-methyl- (9CI)
SB85396
DB-051666