| Identification | More | [Name]
Trimethylacetaldehyde | [CAS]
630-19-3 | [Synonyms]
2,2-DIMETHYL-1-PROPANAL
2,2-DIMETHYLPROPANAL
2,2-DIMETHYLPROPIONALDEHYDE
PAL
PIVALALDEHYDE
PIVALDEHYDE
TRIMETHYLACETALDEHYDE
2,2-dimethyl-propana
2,2-Dimethylpropionaldehyd
2-Dimethylpropanal
alpha,alpha-Dimethylpropionaldehyde
Neopentaldehyde
Neopentanal
Pivalic aldehyde
Pivalicaldehyde
propanal,2,2-dimethyl-
tert-Butylformaldehyde
tert-C4H9CHO
tert-Pentanal
tert-Valeraldehyde | [EINECS(EC#)]
211-134-6 | [Molecular Formula]
C5H10O | [MDL Number]
MFCD00006962 | [Molecular Weight]
86.13 | [MOL File]
630-19-3.mol |
| Chemical Properties | Back Directory | [Appearance]
Clear colorless liquid | [Melting point ]
6 °C(lit.)
| [Boiling point ]
74 °C730 mm Hg(lit.)
| [density ]
0.793 g/mL at 25 °C(lit.)
| [refractive index ]
n20/D 1.378(lit.)
| [Fp ]
4 °F
| [storage temp. ]
2-8°C
| [solubility ]
Chloroform, Ethyl Acetate (Slightly), Methanol (Slightly) | [form ]
Liquid | [color ]
Clear colorless | [Specific Gravity]
0.793 | [Water Solubility ]
Negligible | [Sensitive ]
Air Sensitive | [BRN ]
506060 | [Dielectric constant]
9.0500000000000007 | [Stability:]
Air Sensitive, Volatile | [InChIKey]
FJJYHTVHBVXEEQ-UHFFFAOYSA-N | [CAS DataBase Reference]
630-19-3(CAS DataBase Reference) | [NIST Chemistry Reference]
Propanal, 2,2-dimethyl-(630-19-3) | [EPA Substance Registry System]
630-19-3(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
F,Xi,F+ | [Risk Statements ]
R11:Highly Flammable.
R37/38:Irritating to respiratory system and skin .
R43:May cause sensitization by skin contact. | [Safety Statements ]
S16:Keep away from sources of ignition-No smoking .
S23:Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer) .
S33:Take precautionary measures against static discharges .
S24:Avoid contact with skin . | [RIDADR ]
UN 1989 3/PG 2
| [WGK Germany ]
3
| [F ]
8 | [TSCA ]
Yes | [HazardClass ]
3 | [PackingGroup ]
III | [HS Code ]
29121900 |
| Raw materials And Preparation Products | Back Directory | [Raw materials]
3,3-Dimethyl-2-oxobutyric acid-->2-hydroxy-2-methylpropionaldehyde | [Preparation Products]
neopentyl glycol-->Clomazone-->(S)-2-Methylproline-->METHYL ISOCYANOACETATE-->N-(Trimethylsilyl)-2,2-dimethylpropane-1-imine-->2,2-DIMETHYL-3-HEXANOL-->1,9-BIS-BOC-1,5,9-TRIAZANONANE-->methyl (2S)-2-amino-3,3-dimethylbutanoate-->2,2-DIMETHYL-3-HEXANONE-->(2S,5S)-(-)-2-TERT-BUTYL-3-METHYL-5-BENZYL-4-IMIDAZOLIDINONE-->Ethyl pivaloylacetate-->2-AMINO-5-TERT-BUTYL-1,3,4-THIADIAZOLE-->2R,5S)-5-benzyl-2-tert-butyl-3-MethyliMidazolidin-4-one |
| Questions and Answers (Q&A) | Back Directory | [Description]
Trimethylacetaldehyde (also known as Pivaldehyde) is the trimethyl
form of acetaldehyde. It is an aldehyde with a sterically bulky R
group, the tertiary-butyl group being attached to the carbonyl,
>C=O. It is a useful reagent in organic synthesis, pharmaceuticals,
agrochemicals and dyestuff. It is useful in streoselective synthesis
application as well as in aldol condensation reactions. As a
derivative of acetaldehyde, trimethyl acetaldehyde can be used for
the production of acetate. It can also be used as the precursor for
manufacturing of pyridine derivatives, pentaerythritol, and
crotonaldehyde. | [References]
Ho, Tse Lok, et al. Pivaldehyde. Fieser and Fieser's Reagents for Organic Synthesis. John Wiley & Sons, Inc. 2006.
https://en.wikipedia.org/wiki/Acetaldehyde#Uses
https://en.wikipedia.org/wiki/Pivaldehyde
https://www.alfa.com/en/catalog/A15013/
|
| Hazard Information | Back Directory | [Chemical Properties]
Clear colorless liquid | [Uses]
Commonly used building block in aldol condensation reactions. | [Definition]
ChEBI: 2,2-dimethylpropanal is a member of the class of propanals that is propanal substituted by two methyl groups at position 2. It is a member of propanals and a 2-methyl-branched fatty aldehyde. |
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