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Butanediol

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(Redirected from Butylene glycol)

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

Geminal diols

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

Isobutylene glycol and methylpropanediol

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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

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2-Methylpropane-1,3-diol derivatives:

See also

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References

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  1. ^ "Butanediol". PubChem.
  2. ^ "Propanediol, methyl-". PubChem.