Neopentyl alcohol

Neopentyl alcohol is a compound with formula (CH3)3CCH2OH. It is a colorless solid. The compound is one of the eight isomers of pentyl alcohol.

Neopentyl alcohol[1]
Ball-and-stick model of the neopentyl alcohol molecule
Names
Preferred IUPAC name
2,2-Dimethylpropan-1-ol
Other names
tert-Butyl carbinol
tert-Butylmethanol
Neoamyl alcohol
Neopentanol
Identifiers
3D model (JSmol)
ChEMBL
ChemSpider
ECHA InfoCard100.000.826 Edit this at Wikidata
EC Number
  • 200-907-3
UNII
UN number1325
  • InChI=1S/C5H12O/c1-5(2,3)4-6/h6H,4H2,1-3H3 checkY
    Key: KPSSIOMAKSHJJG-UHFFFAOYSA-N checkY
  • InChI=1/C5H12O/c1-5(2,3)4-6/h6H,4H2,1-3H3
    Key: KPSSIOMAKSHJJG-UHFFFAOYAJ
  • CC(CO)(C)C
Properties
C5H12O
Molar mass88.150 g·mol−1
Density0.812 g/mL at 20 °C
Melting point52.5 °C (126.5 °F; 325.6 K)
Boiling point113.5 °C (236.3 °F; 386.6 K)
36 g/L
Solubilityvery soluble in ethanol, diethyl ether
Thermochemistry
-399.4 kJ·mol−1
Hazards
GHS labelling:[2]
GHS02: FlammableGHS07: Exclamation mark
Warning
H226, H228, H319, H332, H335
P210, P233, P240, P241, P242, P243, P261, P264+P265, P271, P280, P303+P361+P353, P304+P340, P305+P351+P338, P317, P319, P337+P317, P370+P378, P403+P233, P403+P235, P405, P501
Flash point37 °C (99 °F; 310 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Preparation and reactions

Neopentyl alcohol can be prepared from the hydroperoxide of diisobutylene.[3]It can also be prepared by the reduction of trimethylacetic acid with lithium aluminium hydride. Neopentyl alcohol was the first described in 1891 by L. Tissier, who prepared it by reduction of a mixture of trimethyl acetic acid and trimethylacetyl chloride with sodium amalgam.[4]

Neopentyl alcohol can be converted to neopentyl iodide by treatment with triphenylphosphite/methyl iodide:[5]

(CH3)3CCH2OH + [CH3(C6H5O)3P]+I → (CH3)3CCH2I + [CH3(C6H5O)2PO + C6H5OH

See also

References