Butanediol

Butanediol, also called butylene glycol, may refer to any one of four stable structural isomers:

• 1,2-Butanediol
• 1,3-Butanediol
• 1,4-Butanediol
• 2,3-Butanediol

Geminal diols

There are also two geminal diols (gem-diols), which are less stable:

• 1,1-Butanediol,^[1] hydrate of butanal
• 2,2-Butanediol,^[2] hydrate of butanone

Isobutylene glycol and methylpropanediol

Isobutylene glycol may be considered a kind of butylene glycol, similarly to butane historically including n-butane and i-butane (isobutane). The modern name for the closely related type of compounds is methylpropanediol. There are two stable structural isomers:

• 2-methylpropane-1,2-diol
• 2-methylpropane-1,3-diol

and one unstable geminal diol:

• 2-methylpropane-1,1-diol (not a glycol), hydrate of 2-methylpropanal (isobutyraldehyde)

These three methylpropanediols are structural isomers of butanediols. They are not chiral.

Examples

2-Methylpropane-1,3-diol derivatives:

• Crisnatol, an experimental medication
• 2-Methyl-2-propyl-1,3-propanediol, medication precursor and active metabolite

See also

• C₄H₁₀O₂
• Diol
  • Alkanediol
• Hydroxyl-substituted butanes
  • Butyl alcohol
  • Butanetriol
  • Butanetetrol (butanetetraol), including 4-carbon sugar alcohols
    • Erythritol
    • Threitol

References

Index of chemical compounds with the same name

This set index article lists chemical compounds articles associated with the same name.
If an internal link led you here, you may wish to change the link to point directly to the intended article.

This page was last edited on 26 May 2024, at 19:33