659878
Potassium tert-butoxide
sublimed grade, 99.99% trace metals basis
Synonym(s):
Potassium tert-butylate, Potassium t-butoxide
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About This Item
Linear Formula:
(CH3)3COK
CAS Number:
Molecular Weight:
112.21
UNSPSC Code:
12352103
NACRES:
NA.23
PubChem Substance ID:
EC Number:
212-740-3
Beilstein/REAXYS Number:
3556712
MDL number:
grade
sublimed grade
Quality Level
vapor pressure
1 mmHg ( 220 °C)
assay
99.99% trace metals basis
form
solid
reaction suitability
core: potassium
greener alternative product characteristics
Catalysis
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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
General description
Potassium tert-butoxide (KOtBu) is a strong, non-nucleophilic base widely used in organic synthesis and materials science. It appears as a white to off-white crystalline solid that is highly reactive, especially in the presence of moisture or air. It can be used as a vapor deposition precursor in chemical vapor deposition (MOCVD) processes for thin film fabrication. It offers potential utility in depositing potassium-containing films or modifying surface chemistry in the production of advanced materials.
Application
Potassium tert-butoxide can be used as:
- A precursor to fabricate potassium-containing thin films via the atomic layer deposition (ALD) method.
- A catalyst for efficient functionalization of silsesquioxanes enabling the preparation of hybrid materials used in optics, electronics, and coating. A strong base in the synthesis of nitriles from aldehydes.
- A promoter and base in cyclization and coupling reactions for enabling a wide range of bond-forming reactions via both ionic and radical mechanisms.
- Mizoroki-Heck-Type reactions are mediated by potassium tert-butoxide. potassium tert-butoxide can commence the anionic polymerization of carbazolyl-substituted oxiranes.
Features and Benefits
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Danger
hcodes
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
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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Anionic polymerization of carbazolyl-substituted oxiranes initiated by potassium alkalide, potassium tert-butoxide and potassium hydride.
Buika G, et al.
Macromolecular Chemistry and Physics, 196(4), 1287-1293 (1995)
Einav Amit et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 26(57), 13046-13052 (2020-04-29)
N-heterocyclic carbenes (NHCs) have emerged as a unique molecular platform for the formation of self-assembled monolayers (SAMs) on various surfaces. However, active carbene formation requires deprotonation of imidazolium salt precursors, which is mostly facilitated by exposure of the salt to
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.
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 659878-25G | 04061832733852 |
| 659878-5G | 04061832733869 |