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41233-93-6 - Potassium tert-pentyloxide, 25% w/w in toluene - Potassium tert-amylate - Potassium tert-pentylate - L15111 - Alfa Aesar

L15111 Potassium tert-pentyloxide, 25% w/w in toluene

Numéro de CAS
41233-93-6
Synonymes
Potassium tert-amylate
Potassium tert-pentylate

Conditionnement Prix ($) Quantité Disponibilité
250ml 62,60
1000ml 188,00
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Potassium tert-pentyloxide, 25% w/w in toluene

MDL
MFCD00064808
EINECS
255-272-5

Propriétés chimiques

Formule
C5H11KO
Poids moleculaire
126.24
Point d'éclair
4°(39°F)
Densité
0.870
Sensibilité
Air & Moisture Sensitive

Applications

Potassium tert-pentyloxide is a strong, hindered base used in combination with lithium diisopropyl amide to generate a superbase for the selective metallation of the aralkyl system at the 6-position of protected estradiols. It is used in organic synthesis, agrochemicals, pharmaceuticals, colorants and aroma chemicals. It acts as a catalyst in polymerization and isomerizations.

Notes

Air and moisture sensitive. Keep container tightly closed in a dry and well-ventilated place. Incompatible with strong oxidizing agents and acids. Reacts violently with water.

Références bibliographiques

Strong, hindered base, soluble in hydrocarbon solvents: J. Am. Chem. Soc., 108, 1306 (1987). Has been used in combination with LDA to generate a superbase for the selective metallation of the aralkyl system at the 6-position of protected estradiols: Synthesis, 1493 (1995).

Halasa, A. F.; Seo, K. S. Anionic solution copolymerization of α-methylstyrene with conjugated dienes above the ceiling temperature of alfa-methylstyrene. Eur. Polym. J. 2014, 51, 80-86.

Liu, W.; Xu, L. Ligand-controlled chemoselectivity in potassium tert-amylate-promoted direct C-H arylation of unactivated benzene with aryl halides. Tetrahedron 2014, 71 (30), 4974-4981.

Mentions de danger et de prudence du SGH

Mentions de danger (UE): H225-H302-H333-H314-H318-H361-H336-H373-H304

Highly flammable liquid and vapour. Harmful if swallowed. May be harmful if inhaled. Causes severe skin burns and eye damage. Causes serious eye damage. Suspected of damaging fertility or the unborn child. May cause drowsiness or dizziness. May cause damage to organs through prolonged or repeated exposure. May be fatal if swallowed and enters airways.

Mentions de prudence: P210-P301+P310a-P303+P361+P353-P305+P351+P338-P405-P501a

Keep away from heat/sparks/open flames/hot surfaces. - No smoking. IF SWALLOWED: IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Autres références

Beilstein
4149025
Classe de danger
3
Groupe d'emballage
II
Code tarifaire harmonisé
2905.19
TSCA
Yes

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Catalyseurs

Analytique et matériel de laboratoire