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| | POTASSIUM 2-METHYL-2-BUTOXIDE Basic information |
| Product Name: | POTASSIUM 2-METHYL-2-BUTOXIDE | | Synonyms: | 2-methyl-2-butanopotassiumsalt;potassiumt-amylate,kta;potassiumt-amylate,kta,in;potassiumt-amylate,kta,incyclohexane;potassiumt-amylate,kta,intoluene;POTASSIUM T-AMYLOXIDE;POTASSIUM 2-METHYL-2-BUTOXIDE;Potassium tert-amylate~Potassium tert-pentylate | | CAS: | 41233-93-6 | | MF: | C5H13KO | | MW: | 128.26 | | EINECS: | 255-272-5 | | Product Categories: | | | Mol File: | 41233-93-6.mol |  |
| | POTASSIUM 2-METHYL-2-BUTOXIDE Chemical Properties |
| Melting point | >160°C dec | | Boiling point | 81°C | | density | 0.90 g/mL at 20 °C | | vapor pressure | 0.001-0.49Pa at 20-90℃ | | Fp | 4°C | | storage temp. | Inert atmosphere,Room Temperature | | solubility | soluble in THF, DME, aromatic hydrocarbons | | form | Liquid | | Specific Gravity | 0.8 | | Water Solubility | Reacts with water. | | Sensitive | Moisture Sensitive | | Hydrolytic Sensitivity | 7: reacts slowly with moisture/water | | BRN | 4149025 | | Exposure limits | ACGIH: TWA 20 ppm
OSHA: Ceiling 300 ppm; TWA 200 ppm
NIOSH: IDLH 500 ppm; TWA 100 ppm(375 mg/m3); STEL 150 ppm(560 mg/m3) | | InChIKey | ZRLVQFQTCMUIRM-UHFFFAOYSA-N | | EPA Substance Registry System | 2-Butanol, 2-methyl-, potassium salt (41233-93-6) |
| | POTASSIUM 2-METHYL-2-BUTOXIDE Usage And Synthesis |
| Uses | Potassium tert-pentyloxide is used in wide range of applications in organic synthesis, agrochemicals, pharmaceuticals, colorants and aroma chemicals. It is also used in manufacturing detergents and biodiesel. They also act as catalysts in polymerization and isomerizations. | | Uses | Potassium tert-pentoxide solution has been used as a base to synthesize [RuClPh(CO)(H2IMes)(PCy3)] from second-generation Grubbs metathesis catalyst, [RuCl2(=CHPh)(H2IMes)(PCy3)], (where H2IMes is 1,3-dimethyl-4,5-dihydroimidazol-2-ylidene and PCy3 is tricyclohexylphosphine) and benzyl alcohol. This complex is a solid, air-stable and highly active isomerization catalyst. | | Synthesis |
The Preparative Method of Potassium 2-Methyl-2-butoxide: amber-coloured 0.15-0.20 M EtCMe2OH solutions of the reagent are prepared in situ by refluxing oxide-free potassium metal in the anhydrous alcohol for 3-4 h. Solutions of the base, which are 1.0-2.0 M in THF, benzene, or toluene, are prepared by treating oil-free Potassium Hydride with an equivalent amount of anhydrous t-pentyl alcohol in the anhydrous solvent under an inert atmosphere.
| | Precautions |
Solutions should be handled with the same precautions used for solutions of t-BuOK (see Potassium t-Butoxide). Avoid contact with the eyes, skin, and clothing. Conduct all reactions under a dry nitrogen or argon atmosphere. In the absence of air and moisture, solutions of the base in benzene or toluene may be stored in a refrigerator for up to 1 year without significant deterioration. However, for critical experiments, it is recommended that the reagent be freshly prepared. Use in a fume hood.
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| | POTASSIUM 2-METHYL-2-BUTOXIDE Preparation Products And Raw materials |
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