Skip to main content

3-Butyn-2-ol

ADVERTISEMENT
Identification
Molecular formula
C4H6O
CAS number
927-74-2
IUPAC name
but-3-yn-2-ol
State
State

At room temperature, 3-Butyn-2-ol is in a liquid state. Due to its relatively low melting point, it remains a liquid at or above -17°C (256.15 K).

Melting point (Celsius)
-17.00
Melting point (Kelvin)
256.15
Boiling point (Celsius)
114.00
Boiling point (Kelvin)
387.15
General information
Molecular weight
70.09g/mol
Molar mass
70.0890g/mol
Density
0.9115g/cm3
Appearence

3-Butyn-2-ol is a liquid compound that is commonly clear and colorless, although it might appear slightly yellow depending on the purity and presence of impurities. It possesses a mild, sweet odor that can be reminiscent of alcoholic solvents.

Comment on solubility

Solubility of But-3-yn-2-ol

But-3-yn-2-ol, with the chemical formula C4H6O, displays intriguing solubility characteristics that can be influenced by several factors:

  • Polarity: As an alcohol, but-3-yn-2-ol features a hydroxyl (-OH) group that renders it polar. This means it is generally soluble in polar solvents, such as water.
  • Hydrogen Bonding: The capability of but-3-yn-2-ol to participate in hydrogen bonding enhances its solubility in water, allowing it to mix well with other alcohols and polar organic solvents.
  • Hydrophobic Interaction: The alkyne component of the structure contributes to some hydrophobic characteristics. Thus, while it is soluble in water, its solubility may not be as high as more straightforward alcohols, like ethanol.
  • Temperature Effects: Like many organic compounds, solubility can increase with temperature, making hot water more effective at dissolving but-3-yn-2-ol compared to cold water.

In summary, "the solubility of but-3-yn-2-ol is decent in water due to its polar -OH group, but its hydrophobic alkyne segment limits complete compatibility with more non-polar solvents." Therefore, it can be considered predominantly soluble in polar environments while showing variability under different conditions.

Interesting facts

Exploring But-3-yn-2-ol

But-3-yn-2-ol is a fascinating organic compound that belongs to the class of alcohols and alkynes. Its unique triple bond and hydroxyl functional group present intriguing properties and reactions. Here are some interesting facts about this compound:

  • Structure and Isomerism: But-3-yn-2-ol has an interesting structure with a long carbon chain featuring a triple bond. It exists as a structural isomer of other butynols, showcasing the diversity in chemical arrangements that carbon compounds can exhibit.
  • Reactivity: The presence of both the hydroxyl group and the triple bond results in notable reactivity. This compound can participate in various organic reactions, such as nucleophilic substitutions and electrophilic additions.
  • Applications in Synthesis: But-3-yn-2-ol serves as a valuable intermediate in the synthesis of other complex organic molecules. Its reactivity makes it a key player in the development of pharmaceuticals and agrochemicals.
  • Solvent Properties: Due to its alcohol nature, But-3-yn-2-ol can potentially act as a solvent or co-solvent in various chemical reactions, facilitating the solubility of reactants.
  • Biological Relevance: While not directly a natural product, compounds like But-3-yn-2-ol can be used in the study of biological pathways, particularly in understanding how specific modifications to alcohols influence biological activity.

In summary, But-3-yn-2-ol is not just a simple compound; it illustrates the complexity and beauty of organic chemistry. Its varied applications and unique structural features make it a worthy subject of study for both students and seasoned chemists alike. As one researcher noted, “Each compound tells a story of its formation and potential.”

Synonyms
3-Butyn-2-ol
but-3-yn-2-ol
2028-63-9
3-Butyne-2-ol
3-Hydroxy-1-butyne
1-BUTYN-3-OL
1-Methylpropargyl alcohol
Methylethynylcarbinol
1-Ethynylethanol
1-Methyl-2-propynyl alcohol
alpha-Methylpropargyl alcohol
EINECS 217-978-1
NSC 222370
BRN 0635722
AI3-37957
4-01-00-02218 (Beilstein Handbook Reference)
1Ethynylethanol
3Hydroxy1butyne
3Butyne2ol
1Butyn3ol
1Methylpropargyl alcohol
1Methyl2propynyl alcohol
alphaMethylpropargyl alcohol
217-978-1
65337-13-5
.alpha.-Methylpropargyl alcohol
(+/-)-3-butyn-2-ol
Ethynylmethylcarbinol
(R)-(+)-1-Butyn-3-ol
dl-3-butyn-2-ol
2-Hydroxy-3-butyne
(+)-3-butyn-2-ol
butyn-2-ol
1-butyne-3-ol
MFCD00004541
3-but-1-ynol
3-Butine-2-ol
1-methylprop-2-ynol
but-1-yn-3-ol
Methyl ethynyl carbinol
1-Methyl-2-propyn-1-ol
3-Methyl-1-propyn-3-ol
HC.$.CCH(CH3)OH
3-Butyn-2-ol, 97%
DTXSID3022297
BCP05896
BCP29700
BBL013177
NSC222370
STL163957
AKOS005716681
NSC-222370
PB47873
SB40660
SY007471
DB-047531
DB-070381
B0750
B1001
NS00020063
EN300-84568
A835068
(2S)-but-3-yn-2-ol;(S)-(-)-1-Butyn-3-ol
(1R)-1-Methyl-2-propyne-1-ol;(R)-but-3-yn-2-ol
F0001-0714
Z1251193370