• Source: 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, hydrate of butanal
2,2-Butanediol, 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

Kata Kunci Pencarian:

• BDO
• Penisilin
• Polonium
• Busulfan
• 1,4-Butanediol
• Butanediol
• 1,3-Butanediol
• 2,3-Butanediol
• 1,2-Butanediol
• Polybutylene adipate terephthalate
• Γ-Butyrolactone
• Butanediol fermentation
• Federal Analogue Act
• 1,4-Butanediol diglycidyl ether