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Merck

156671

Sigma-Aldrich

Potassium tert-butoxide

greener alternative

reagent grade, ≥98%

Sinónimos:

Potassium T-butoxide

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About This Item

Fórmula lineal:
(CH3)3COK
Número de CAS:
Peso molecular:
112.21
Beilstein/REAXYS Number:
3556712
EC Number:
MDL number:
UNSPSC Code:
12352303
PubChem Substance ID:
NACRES:
NA.22

grade

reagent grade

Quality Level

vapor pressure

1 mmHg ( 220 °C)

assay

≥98%

form

solid

greener alternative product characteristics

Catalysis
Learn more about the Principles of Green Chemistry.

sustainability

Greener Alternative Product

mp

256-258 °C (dec.) (lit.)

greener alternative category

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

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General description

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for catalytic efficiency. Find details here.

Application

Potassium tert-butoxide has been used as a strong base in the enantioselective synthesis of amines by transfer hydrogenation of N-(tertbutylsulfinyl)imines.
It can also be used:
  • To synthesize aliphatic and aromatic amides from corresponding esters and amines.
  • As a base in the intramolecular cyclization of aryl ethers, amines, and amides.
  • As a catalyst to prepare styrene derivatives from aryl halides and alkenes by Mizoroki-Heck reaction.

Used for greener amidation of esters.

tert-Butoxide-Assisted Amidation of Esters under Green Conditions

Potassium tert-butoxide may be used as a base in the intramolecular cyclization of iodo arene to afford benzopyran via microwave method of synthesis.

pictograms

FlameCorrosion

signalword

Danger

Hazard Classifications

Eye Dam. 1 - Flam. Sol. 1 - Self-heat. 2 - Skin Corr. 1A

supp_hazards

Storage Class

4.2 - Pyrophoric and self-heating hazardous materials

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


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Visite la Librería de documentos

Mizoroki-Heck-type reaction mediated by potassium tert-butoxide
Shirakawa E, et al.
Angewandte Chemie (International ed. in English), 123(20), 4767-4770 (2011)
"Potassium tert-Butoxide Promoted Intramolecular Arylation via a Radical Pathway"
Roman SD, et al.
Organic Letters, 13(12), 3242-3245 (2011)
tert-Butoxide-assisted amidation of esters under green conditions
Kim Bo Ram, et al.
Synthesis, 44(01), 42-50 (2012)
Hajime Ito et al.
Chemical communications (Cambridge, England), 48(64), 8006-8008 (2012-07-10)
The regio- and diastereoselective silaboration of aromatic alkenes with a silylboron compound proceeds in the presence of a catalytic amount of potassium tert-butoxide, providing a complementary method to the corresponding transition metal-catalyzed reactions.
Aurélie Mallinger et al.
The Journal of organic chemistry, 74(3), 1124-1129 (2008-12-24)
3-Aryltetronic acids were prepared in one step by treatment of a mixture of methyl arylacetates and methyl hydroxyacetates with potassium tert-butoxide, via tandem transesterification/Dieckmann condensation. Several mushroom or lichen pigments, vulpinic acids, were synthesized from 3-(4-methoxyphenyl)tetronic acid in three steps

Protocolos

Information on the Amide bond and the Catalytic Amide Bond Formation Protocol. Amidation of amines and alcohols. The amide bond, an important linkage in organic chemistry, is a key functional group in peptides, polymers, and many natural products and pharmaceuticals.

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