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328650

Potassium tert-butoxide solution

1.0 M in THF

Synonym(s):

Potassium tert-butylate, Potassium-2-methylpropan-2-olate solution

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About This Item

Linear Formula:
(CH3)3COK
CAS Number:
865-47-4
Molecular Weight:
112.21
UNSPSC Code:
12352103
NACRES:
NA.23
PubChem Substance ID:
24859391
MDL number:
MFCD00012162
Beilstein/REAXYS Number:
3556712
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form

liquid

Quality Segment

200

reaction suitability

core: potassium

concentration

1.0 M in THF

density

0.902 g/mL at 25 °C

SMILES string

[K+].CC(C)(C)[O-]

InChI

1S/C4H9O.K/c1-4(2,3)5;/h1-3H3;/q-1;+1

InChI key

LPNYRYFBWFDTMA-UHFFFAOYSA-N

General description

Potassium tert-butoxide solution is a strong non nucleophilic base. It is capable of deprotonating carbon and other Bronsted acids. Reagent solutions in tert-BuOh may be prepared by reacting anhydrous alcohol with potassium in nitrogen atmosphere.

Application

Potassium tert-butoxide solution(t-BuOK) can be used:
  • As a catalyst for the interesterification of rapeseed oil with methyl acetate.
  • To promote Sommelet–Hauser rearrangements of N-benzylic amino acid-derived ammonium ylides under mild conditions.
  • As a metal-organic precursor in the synthesis of KNbO3 ferroelectric films by the chemical vapor deposition method.
  • To prepare 3-potassiooxamethylpyridine catalyst.
  • As a strong alkoxide base reagent.

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Carc. 2 - Eye Dam. 1 - Flam. Liq. 2 - Skin Corr. 1A - STOT SE 3

target_organs

Central nervous system, Respiratory system

supp_hazards

EUH014,EUH019

Storage Class

4.3 - Hazardous materials which set free flammable gases upon contact with water

flash_point_f

-2.2 °F - closed cup

flash_point_c

-19 °C - closed cup

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