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Hex-5-en-2-one

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Identification
Molecular formula
C6H10O
CAS number
109-49-9
IUPAC name
hex-5-en-2-one
State
State

At room temperature, hex-5-en-2-one exists as a liquid. It flows easily and has a moderate viscosity typical of organic ketones with similar molecular weights.

Melting point (Celsius)
-58.00
Melting point (Kelvin)
215.15
Boiling point (Celsius)
128.00
Boiling point (Kelvin)
401.15
General information
Molecular weight
98.14g/mol
Molar mass
98.1430g/mol
Density
0.8420g/cm3
Appearence

Hex-5-en-2-one is a colorless liquid with a distinctive, slightly sweet odor. This compound is typically used in perfume compositions due to its pleasant aroma. The liquid is clear and homogenous, maintaining good consistency under standard conditions.

Comment on solubility

Solubility of Hex-5-en-2-one

Hex-5-en-2-one, with its distinctive double bond and ketone functional group, displays interesting solubility characteristics that are essential for both its chemical behavior and practical applications.

This compound is known to be soluble in organic solvents such as:

  • Ethyl acetate
  • Acetone
  • Benzene

However, its solubility in water is considerably limited. This is primarily due to:

  • The non-polar nature of the hydrocarbon chain, which reduces interactions with polar water molecules.
  • The presence of the carbonyl group, which can interact with water, but is not sufficient to overcome the hydrophobic effects of the alkene part.

As a general observation, alkenes and ketones tend to show varied solubility, influenced by their specific structure and functional groups. Thus, it is often said, "like dissolves like,” emphasizing the importance of chemical structure in solubility behaviors.

In summary, while hex-5-en-2-one finds considerable solubility in non-aqueous solvents, its limited solubility in water highlights the complexities inherent in predicting solubility based on molecular structure.

Interesting facts

Interesting Facts about Hex-5-en-2-one

Hex-5-en-2-one, a compound with both a carbonyl and a double bond, offers a fascinating glimpse into organic chemistry. Here are some highlights:

  • Functional Groups: This compound features a ketone functional group and an alkene, which contribute to its reactivity and versatility in chemical reactions.
  • Synthesis: Hex-5-en-2-one can be synthesized through various methods, often involving the aldol condensation reaction, where carbonyl compounds condense under specific conditions to form larger molecules.
  • Applications: It serves as an important intermediate in organic synthesis. Its unique structure makes it useful in producing pharmaceuticals, agrochemicals, and various fine chemicals.
  • Isomerism: The compound exhibits geometric isomerism due to the presence of the double bond, allowing for the existence of both cis and trans isomers. Each isomering can have distinctly different chemical properties and reactivity.
  • In Nature: Hex-5-en-2-one and its derivatives may be found in natural products, contributing to the complex chemistry of essential oils and other plant compounds.

As a compound with intriguing structural characteristics, hex-5-en-2-one exemplifies the intricate world of organic chemistry where small changes in molecular structure can lead to substantial differences in behavior and application.

Conclusion

Understanding compounds like hex-5-en-2-one not only furthers our grasp of organic chemistry but also opens avenues for innovative applications in science and industry. Remember, "The beauty of chemistry is in its complexity!"

Synonyms
5-Hexen-2-one
hex-5-en-2-one
109-49-9
Allylacetone
1-Hexen-5-one
5-Hexene-2-one
XWM6RL9YEI
NSC 6973
NSC-6973
EINECS 203-675-1
AI3-21995
DTXSID0059372
3-Buten-1-yl Methyl Ketone
ALLYL ACETONE
UNII-XWM6RL9YEI
NSC6973
1-hexene-5-one
5-oxo-1-hexene
MFCD00008793
5-Hexen-2-one, 99%
DTXCID5033125
CHEBI:179653
LMFA12000035
STL268881
AKOS009156552
FH35623
DB-308104
H0125
NS00012568
EN300-89941
D90803
Q24816828
Z406376894