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Chemical compound From Wikipedia, the free encyclopedia
Benzylpotassium is an organopotassium compound with the formula C6H5CH2K, an orange powder. Like organo-alkali metal reagents in general, benzyl potassium is highly reactive, so much so that it reacts with most solvents. It is highly air sensitive.
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Other names
Potassium benzyl | |
Identifiers | |
3D model (JSmol) |
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ChemSpider | |
PubChem CID |
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CompTox Dashboard (EPA) |
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Properties | |
C7H7K | |
Molar mass | 130.231 g·mol−1 |
Appearance | Orange solid |
Hazards | |
Occupational safety and health (OHS/OSH): | |
Main hazards |
Ignites in air |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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One early synthesis proceeds by two-step transmetallation reaction by p-tolylpotassium:[1]
A modern synthesis involves the reaction of butyllithium, potassium tert-butoxide, and toluene.[2] Although potassium hydride can also be used as a strong base for preparing potassium salts, benzyl potassium has the advantage of being molecular and hence more fast-acting.
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