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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


Certificados de análisis (COA)

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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)
Synthesis of highly enantiomerically enriched amines by asymmetric transfer hydrogenation of N-(tert-butylsulfinyl) imines
Guijarro D, et al.
Organic Syntheses (2013)
Wei Liu et al.
Chemical communications (Cambridge, England), 49(29), 2983-2985 (2013-03-07)
Simple and cheap alcohols can promote the direct arylation of unactivated arenes with aryl iodides and bromides in the presence of potassium tert-butoxide. This transition-metal-free aromatic C-H transformation offers a cheap and easy practical way to synthesize biaryls under mild

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