Merck
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537594

Sigma-Aldrich

tert-Butyl acetoacetate

reagent grade, 98%

Synonym(s):
TBAA
Linear Formula:
CH3COCH2COOC(CH3)3
CAS Number:
Molecular Weight:
158.19
Beilstein:
1680303
MDL number:
PubChem Substance ID:

Quality Level

grade

reagent grade

assay

98%

expl. lim.

8 % (lit.)

impurities

≤0.20% water
water

refractive index

n20/D 1.419 (lit.)

bp

71-72 °C/11 mmHg (lit.)

mp

-38 °C (lit.)

density

0.954 g/mL at 25 °C (lit.)

SMILES string

CC(=O)CC(=O)OC(C)(C)C

InChI

1S/C8H14O3/c1-6(9)5-7(10)11-8(2,3)4/h5H2,1-4H3

InChI key

JKUYRAMKJLMYLO-UHFFFAOYSA-N

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General description

tert-Butyl acetoacetate (t-BAA) is a cheap and easy to store commercial reagent. Reaction demonstrated that the more hindered tert-butyl acetoacetate (t-BAA, la) is ca.15-20-fold more reactive than the more commonly used methyl or ethyl analogs. It is widely employed as an acetoacetylating reagent.

Application

tert-Butyl acetoacetate may be used in the synthesis of:
  • various acetoacetic acid derivatives
  • acetoacetates
  • acetoacetamides
  • 1-(diethylamino)-2-acetoacetoxypropane
  • (S)-tert-butyl 3-hydroxybutyrate
  • benzothiazole β-keto ester derivatives
  • 3,4-disubstituted pyrroles

Packaging

1, 4 L in poly bottle
100, 500 mL in poly bottle

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

150.8 °F - closed cup

Flash Point(C)

66 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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