Phenylethynylmagnesium bromide
phenylethynylmagnesium bromide
CAS: 6738-06-3
Molecular Formula: C8H5BrMg
Phenylethynylmagnesium bromide - Names and Identifiers
Phenylethynylmagnesium bromide - Physico-chemical Properties
| Molecular Formula | C8H5BrMg |
| Molar Mass | 205.34 |
| Density | 1.018g/mLat 25°C |
| Boling Point | 142.4°C at 760 mmHg |
| Flash Point | −6°F |
| Vapor Presure | 7.02mmHg at 25°C |
| Storage Condition | 2-8°C |
Phenylethynylmagnesium bromide - Risk and Safety
| Risk Codes | R11 - Highly Flammable R14 - Reacts violently with water R19 - May form explosive peroxides R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R34 - Causes burns R40 - Limited evidence of a carcinogenic effect R37 - Irritating to the respiratory system R17 - Spontaneously flammable in air |
| Safety Description | S16 - Keep away from sources of ignition. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S27 - Take off immediately all contaminated clothing. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
| UN IDs | UN 2924 3/PG 2 |
| WGK Germany | 3 |
Phenylethynylmagnesium bromide - Introduction
phenylethynylmagnesium bromide is an organic compound with the chemical formula C8H6C ≡ CMgBr. It is a white solid, soluble in ether and cyclohexane.
phenylethynylmagnesium bromide are often used as nucleophiles in organic synthesis. It can react with acid compounds to generate the corresponding alcohols, ethers, ketones, aldehydes and other organic functional groups. Due to the strong nucleophilic properties of phenylethynylmagnesium bromide, it can also react with halogenated hydrocarbons to form important organic compounds.
The method for preparing phenylethynylmagnesium bromide is generally obtained by reacting phenyl acetylene with magnesium bromide. First, phenylacetylene is added to dry ether or cyclohexane, followed by slow addition of magnesium bromide. After completion of the reaction, the phenylethynylmagnesium bromide can be obtained by filtration or evaporation of the solvent.
Regarding safety information, phenylethynylmagnesium bromide is an irritating and flammable compound. Wear appropriate protective equipment during handling to avoid contact with skin and eyes. In addition, during storage and use, care should be taken to avoid contact with oxygen and moisture to prevent dangerous reactions. It is recommended to use under the guidance of professionals.
phenylethynylmagnesium bromide are often used as nucleophiles in organic synthesis. It can react with acid compounds to generate the corresponding alcohols, ethers, ketones, aldehydes and other organic functional groups. Due to the strong nucleophilic properties of phenylethynylmagnesium bromide, it can also react with halogenated hydrocarbons to form important organic compounds.
The method for preparing phenylethynylmagnesium bromide is generally obtained by reacting phenyl acetylene with magnesium bromide. First, phenylacetylene is added to dry ether or cyclohexane, followed by slow addition of magnesium bromide. After completion of the reaction, the phenylethynylmagnesium bromide can be obtained by filtration or evaporation of the solvent.
Regarding safety information, phenylethynylmagnesium bromide is an irritating and flammable compound. Wear appropriate protective equipment during handling to avoid contact with skin and eyes. In addition, during storage and use, care should be taken to avoid contact with oxygen and moisture to prevent dangerous reactions. It is recommended to use under the guidance of professionals.
Last Update：2024-04-10 22:29:15
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