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CAS RN: 865-47-4 | Product Number: P1008

Potassium tert-Butoxide


Purity: >97.0%(T)
Synonyms:
Product Documents:
25G
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500G
$141.00
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Product Number P1008
Purity / Analysis Method >97.0%(T)
Molecular Formula / Molecular Weight C__4H__9KO = 112.21 
Physical State (20 deg.C) Solid
Storage Temperature Room Temperature (Recommended in a cool and dark place, <15°C)
Store Under Inert Gas Store under inert gas
Condition to Avoid Hygroscopic
CAS RN 865-47-4
Reaxys Registry Number 3556712
PubChem Substance ID 87575121
SDBS (AIST Spectral DB) 18431
MDL Number

MFCD00012162

Specifications
Appearance White to Light yellow powder to crystal
Purity(Neutralization titration) min. 97.0 %
Properties (reference)
Melting Point 240 °C(dec.)
Solubility (soluble in) Ether
GHS
Pictogram Pictogram Pictogram
Signal Word Danger
Hazard Statements H314 : Causes severe skin burns and eye damage.
H251 : Self-heating; may catch fire.
Precautionary Statements P501 : Dispose of contents/ container to an approved waste disposal plant.
P260 : Do not breathe dusts or mists.
P235 + P410 : Keep cool. Protect from sunlight.
P264 : Wash skin thoroughly after handling.
P280 : Wear protective gloves/ protective clothing/ eye protection/ face protection.
P303 + P361 + P353 : IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower.
P301 + P330 + P331 : IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P363 : Wash contaminated clothing before reuse.
P304 + P340 + P310 : IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/doctor.
P305 + P351 + P338 + P310 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER/doctor.
P407 : Maintain air gap between stacks/ pallets.
P420 : Store away from other materials.
P405 : Store locked up.
Related Laws:
Transport Information:
UN Number (DOT-AIR) UN3206
Class (DOT-AIR) 4.2/8
Packing Group (TCI-A) II
HS Number 2905.19.9090
Application
TCI Practical Example: Synthesis of Amide via the Meervein-Ponndolf-Verley Type Reaction Using tBuOK

Title

Used Chemicals

Procedure

To a solution of benzyl alcohol (540 mg, 5.0 mmol), benzonitrile (1.03 g, 10 mmol, 2.0 eq.) in 1,4-dioxane (10 mL) was added potassium tert-butoxide (1.12 g, 10.0 mmol, 2.0 eq.) at r.t. and the mixture was stirred at 130 °C for overnight. The solvent was removed under reduced pressure and the residue was purified by column chromatography (on silica gel, ethyl acetate:hexane = 0:1 - 1:2) several times, giving N-benzylbenzamide as a white solid (513 mg, 49% yield).

Experimenter’s Comments

The reaction mixture was monitored by UPLC.
The reaction was carried out using a pressure-resistant test tube.
Purification by column chromatography was performed several times.

Analytical Data

N-benzylbenzamide

1H NMR (270 MHz, DMSO-d6); δ 9.05 (brt, 1H, J = 5.4 Hz), 7.90 (dd, 1H, J = 7.3, 1.6 Hz), 7.56-7.44 (m, 3H), 7.36-7.32 (m, 4H), 7.25 (q, 1H, J = 7.3 Hz).

Lead Reference


Application
Acetylation of Alcohols via Transesterification using Acetylating Reagents

P1008

References

  • 1)Transesterification/Acylation of Secondary Alcohols Mediated by N-Heterocyclic Carbene Catalysts
  • 2)Protection for the Hydroxyl Group, Including 1,2- and 1,3-Diols
    • P. G. M. Wuts, in Greene’s Protective Groups in Organic Synthesis, 5th ed., ed. by P. G. M. Wuts, John Wiley & Sons, Inc., Hoboken, New Jersey, 2014, Chap. 2, 17.


Application
t-Butyldimethylsilylation of Alcohols using TBS Reagents

P1008

References

  • Potassium tert-Butoxide-Catalyzed Dehydrogenative Si-O Coupling: Reactivity Pattern and Mechanism of an Underappreciated Alcohol Protection
  • Protection for the Hydroxyl Group, Including 1,2- and 1,3-Diols
    • P. G. M. Wuts, in Greene’s Protective Groups in Organic Synthesis, 5th ed., ed. by P. G. M. Wuts, John Wiley & Sons, Inc., Hoboken, New Jersey, 2014, Chap. 2, 17.


PubMed Literature


Product Documents (Note: Some products will not have analytical charts available.)
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