丙炔

一种三碳端炔，其水合反应需考虑区域选择性。

化学式
C3H4
摩尔质量
40.06 g/mol
Also known as
prop-1-yne, Methylacetylene, 1-PROPYNE, Allylene, Methyl acetylene, Acetylene, methyl-

概览

The methyl group and terminal hydrogen make its two triple-bond carbons inequivalent. Mercury-catalysed hydration leads through an enol to propanone, whereas an appropriate hydroboration–oxidation sequence gives propanal. The isolated carbonyl product is not the initially formed enol.

Identifiers

化学式
C3H4
摩尔质量
40.06 g/mol
Also known as
prop-1-yne, Methylacetylene, 1-PROPYNE, Allylene, Methyl acetylene, Acetylene, methyl-
化学标识符
SMILES
CC#C
InChI
InChI=1S/C3H4/c1-3-2/h1H,2H3
PubChem CID
6335

性质

熔点
-102.7 °C
沸点
-23.2 °C
相对密度（水 = 1）
Relative density (water = 1): 0.70
水中溶解度
In water, 3,640 mg/L at 25 °C

Related compounds

  • 炔烃

    Propyne is a specific member of the alkynes family.

参考文献

  1. PubChem Compound Summary: Propyne (CID 6335)National Center for Biotechnology Information · PubChem

    Identity, molecular formula, molecular weight and aliases retrieved via PUG REST on 2026-09-08.

  2. OpenStax Organic Chemistry: Hydration of alkynesJohn McMurry · OpenStax · 2023

    Supports the qualitative structure and reactivity context; identity and numerical measurements retain their original references.

  3. Hazardous Substances Data Bank (HSDB): Propyne — melting pointHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/6335#section=Melting-Point. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: Lide, D.R., G.W.A. Milne (eds.). Handbook of Data on Organic Compounds. Volume I. 3rd ed. CRC Press, Inc. Boca Raton ,FL. 1994., p. V5: 4591

  4. Hazardous Substances Data Bank (HSDB): Propyne — boiling pointHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/6335#section=Boiling-Point. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: Lide, D.R., G.W.A. Milne (eds.). Handbook of Data on Organic Compounds. Volume I. 3rd ed. CRC Press, Inc. Boca Raton ,FL. 1994., p. V5: 4591

  5. ILO-WHO International Chemical Safety Cards (ICSCs): Propyne — densityILO-WHO International Chemical Safety Cards (ICSCs)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/6335#section=Density. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred.

  6. Hazardous Substances Data Bank (HSDB): Propyne — solubilityHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/6335#section=Solubility. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: McAuliffe C; J Phys Chem 70: 1267-75 (1966)