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Neopentyl glycol

Names
IUPAC name 2,2-Dimethyl-1,3-propanediol
Identifiers
CAS Number	126-30-7
ECHA InfoCard	100.004.347
CompTox Dashboard (EPA)	DTXSID8027036
Properties
Chemical formula	C5H12O2
Molar mass	104.148 g/mol
Melting point	129.13°C
Boiling point	208°C
Solubility in water	soluble in water
Solubility	soluble in benzene, chloroform, very soluble in ethanol, diethyl ether
Thermochemistry
Std enthalpy of formation (ΔfH298)	-551.2 kJ•mol
Hazards
Flash point	129°C
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Infobox references

Neopentyl glycol (IUPAC name 2,2-dimethyl-1,3-propanediol) is an organic chemical compound. It is used in the sythesis of polyesters, paints, lubricants, and plasticizers. When used in the manufacture of polyesters, it enhances the product's stability toward heat, light, and water.

Reactions

Neopentyl glycol is synthesized industrially by the aldol reaction of formaldehyde and isobutyraldehyde. This creates the intermediate hydroxypivaldehyde, which can be converted to neopentyl glycol with either excess formaldehyde or catalytic hydrogenation of the aldehyde group to an alcohol group.

References

1. Lide, David R. (1998), Handbook of Chemistry and Physics (87 ed.), Boca Raton, FL: CRC Press, pp. 3–228, 5–42, 16–22, ISBN 0849305942
2. Weissermel, Klaus; Arpe, Hans-Jürgen; Lindley (2003), Industrial Organic Chemistry (4 ed.), Wiley-VCH, pp. 214–215, ISBN 9783527305780, retrieved 2009-07-20 {{citation}}: Text "first3 Charlet R." ignored (help)

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