Potassium Tert-Butoxide CAS 865-47-4
High Quality Potassium Tert-Butoxide CAS 865-47-4
- Appearance:Powder
- Purity:99.8%
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Name: Potassium Tert-Butoxide
CAS: 865-47-4
MOQ: 1KG
Directory Guidance on Potassium Tert-Butoxide
Chemical Structure
Basic Info:
Melting point | 256-258 °C (dec.) (lit.) |
Boiling point | 275°C |
density | 0.910 g/mL at 20 °C |
vapor pressure | 1 mm Hg ( 220 °C) |
Fp | 54 °F |
storage temp. | Store below +30°C. |
solubility | Soluble in hexane, toluene, diethyl ether and terahydrofuran. |
Product Introduction:
Potassium Tert-Butoxide (chemical formula: (CH3)3COK(CH_3)_3COK) is an important organic base with a molecular weight of 112.21, usually in the form of white or off-white powder. Due to its strong hygroscopicity, it requires special attention to moisture protection during storage and use. Its melting point is 256-258°C, boiling point is 275°C, and density is 0.929 g/mL. It reacts violently when in contact with water to produce potassium hydroxide and tert-butyl alcohol, so it needs to be handled with caution.
In chemical reactions, Potassium Tert-Butoxide exhibits extremely excellent catalytic properties. Because its alkalinity is greater than potassium hydroxide, it is widely used in a variety of organic reactions, including transesterification, condensation, rearrangement, polymerization, and ring-opening reactions. For example, it plays an important role in Michael addition reactions, Pinacol rearrangement reactions, Ramberg-Backlund rearrangement reactions, etc. At the same time, it is also used in the alkoxide-haloform reaction to generate dihalocarbenes, which makes it have important application value in the fields of chemical industry, medicine and pesticides.
In view of the strong alkalinity and corrosiveness of Potassium Tert-Butoxide, strict safety precautions must be taken when using it. Its strong alkalinity causes it to react violently when it comes into contact with water. Therefore, it should be sealed and stored during storage and transportation, and placed in a cool, dry and ventilated place, away from heat sources and fire. Operators should wear protective masks, rubber oil-resistant gloves and chemical safety glasses to prevent corrosion to the skin and eyes. In addition, since it is easily decomposed in the air, it is usually operated under nitrogen protection.
Nature and Specifications:
Item | Specification |
Product Name | Potassium Tert-Butoxide |
CAS No. | 865-47-4 |
Appearance | Powder |
Shelf Life | 2 years |
Packing | As your requirements |
pka | pK1:18(25°C) |
form | Solution |
color | White to off-white |
Specific Gravity | 0.902 |
PH | 13 (5g/l, H2O, 20℃)Hydrolysis |
Water Solubility | REACTS |
Sensitive | Moisture Sensitive |
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- Certificate Of Analysis (COA)
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- Route of synthesis (ROS)
- Method of Aanlysis (MOA)
- Nuclear Magnetic Resonance (NMR)
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Potassium Tert-Butoxide has become an indispensable reagent in modern organic synthesis, finding use across numerous chemical fields. Elimination reactions benefit greatly from its strong deprotonation ability, enabling efficient b-elimination to take place, particularly for olefin compounds preparation with excellent regioselectivity. Potassium Tert-Butoxide’s unique steric hindrance effect allows it to effectively prevent rearrangement side reactions during molecular construction, making it essential in creating complex molecular skeletons. When used as both catalyst and reactant during carbonyl compound condensation reactions such as Claisen condensation or Diels-Alder reactions, its conversion efficiency greatly improves.
Potassium Tert-Butoxide is often employed in organometallic chemistry to prepare transition metal catalysts. Oxygen anion forms a stable coordination with metal centers, while stereo effect of the tert-butyl group regulates electronic environment of catalytic active center – particularly helpful in asymmetric catalytic reactions. Potassium Tert-Butoxide can facilitate highly selective synthesis processes through its interaction with chiral ligands and can promote the single electron transfer process, creating new opportunities for carbon-carbon bond formation in free radical reactions systems. Furthermore, Potassium Tert-Butoxide offers another path toward carbon-carbon bond construction through free radical reactions systems.
In the pharmaceutical industry, Potassium Tert-Butoxide plays an important role in the synthesis of key intermediates. Especially in the preparation of heterocyclic compounds, its mild reaction conditions can effectively protect sensitive functional groups. In the steps of amino deprotection and cyclization reaction, the precise alkaline regulation ability can significantly improve the purity of the product. In recent years, with the development of continuous flow chemistry technology, the efficient use of Potassium Tert-Butoxide in microreactors has provided new ideas for the greening of drug synthesis processes. In the design of new drug molecules, its unique reaction characteristics are being used to construct molecular structures that are difficult to achieve by traditional methods.
Potassium Tert-Butoxide stands out as an ideal chemical building block in the production of fine chemicals due to its unique properties that allow it to create complex organic molecules. Rearrangement reactions in which it participates often produce thermodynamically controlled advantageous products, which is of particular relevance for natural product synthesis.
From the perspective of product properties, the core advantages of Potassium Tert-Butoxide are firstly reflected in its excellent alkaline strength and perfect balance of reaction selectivity. Its organometallic properties confer better solubility and reaction uniformity than strong inorganic bases such as potassium hydroxide. Compared with traditional strong bases such as sodium hydride, the reaction condition of Potassium Tert-Butoxide is milder and the operation safety of potassium tert-Butoxide is significantly improved. This balance allows it to meet the needs of strong alkaline, but also to avoid the decomposition of products caused by overreaction, especially for complex molecular systems containing sensitive functional groups.
Thermal stability is another significant advantage of this product. Under high temperature reaction conditions, Potassium Tert-Butoxide could still maintain chemical stability, which provided a reliable guarantee for the reaction system requiring heating promotion. This property not only expands its application temperature range, but also reduces the by-product generation due to reagent decomposition. At the same time, the good thermal stability makes the post-reaction treatment more convenient, and the product can be separated by simple distillation, which can effectively reduce energy consumption and cost in industrial production.
The solubility advantage makes Potassium Tert-Butoxide unique value in homotropic reaction system. Potassium Tert-Butoxide has strong adaptability. It can adapt to different reaction conditions and systems and has good compatibility with a variety of organic solvents. Potassium Tert-Butoxide, whether liquid or solid, can be selected and used according to specific process requirements with high flexibility.
Safety is an important competitive advantage of Potassium Tert-Butoxide. Although it is a strongly alkaline substance, its solid form is easier to accurately weigh and operate safely than the liquid strong alkali. In closed reaction systems, the risk of its use is much lower than that of liquid strong bases requiring special storage and transportation conditions. In addition, the by-products generated during the post-reaction treatment process are relatively environmentally friendly, in line with the green development trend of the modern chemical industry. This safety and environmental protection feature makes it easier to pass strict production approval and transportation supervision.
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Related References:
chemicalbook-Potassium Tert-Butoxide
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