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156671
Potassium tert-butoxide
reagent grade, ≥98%
Synonym(s):
Potassium tert-butylate, Potassium t-butoxide
About This Item
Recommended Products
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
Application
It can also be used:
- To synthesize aliphatic and aromatic amides from corresponding esters and amines.[2]
- As a base in the intramolecular cyclization of aryl ethers, amines, and amides.[3]
- As a catalyst to prepare styrene derivatives from aryl halides and alkenes by Mizoroki-Heck reaction.[4]
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.[3]
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Eye Dam. 1 - Flam. Sol. 1 - Self-heat. 2 - Skin Corr. 1A
Supplementary Hazards
Storage Class Code
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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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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How can we see melting point of by MR meter Or is it best we go for DSC
1 answer-
The melting point of item 156671 is 256-258°C, as described in the literature. Due to the higher range, the DSC method would be preferred for this compound.
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