1-Methylpropylmagnesium bromide
Butylmagnesiumbromide
CAS: 922-66-7
Molecular Formula: C4H9BrMg
1-Methylpropylmagnesium bromide - Names and Identifiers
| Name | Butylmagnesiumbromide |
| Synonyms | Butylmagnesiumbromide sec-Butylbromomagnesium (sec-Butyl)bromomagnesium sec-Butylmagnesium bromide SEC-BUTYLMAGNESIUM BROMIDE bromo(1-methylpropyl)magnesium 1-Methylpropylmagnesium bromide |
| CAS | 922-66-7 |
| EINECS | 213-081-4 |
| InChI | InChI=1/C4H9.BrH.Mg/c1-3-4-2;;/h3H,4H2,1-2H3;1H;/q-1;;+2/p-1 |
1-Methylpropylmagnesium bromide - Physico-chemical Properties
| Molecular Formula | C4H9BrMg |
| Molar Mass | 161.32 |
| Melting Point | 64.5-65℃ |
| Boling Point | 122-124 °C(Press: 0.2 Torr) |
| Flash Point | -17°C |
| Vapor Presure | 1920mmHg at 25°C |
1-Methylpropylmagnesium bromide - Risk and Safety
| Risk Codes | R11 - Highly Flammable R14/15 - R19 - May form explosive peroxides R34 - Causes burns R22 - Harmful if swallowed R12 - Extremely Flammable |
| 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. S33 - Take precautionary measures against static discharges. S43 - In case of fire use ... (there follows the type of fire-fighting equipment to be used.) S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. |
| UN IDs | 3399 |
| HS Code | 29319090 |
| Hazard Class | 4.3/3 |
| Packing Group | II |
1-Methylpropylmagnesium bromide - Introduction
Butylmagnesiumbromide is an organic magnesium compound with the chemical formula C4H9MgBr. It is a colorless to pale yellow liquid with a peculiar pungent odor. It can be dissolved in ether, tetrahydrofuran and other organic solvents.
Butylmagnesiumbromide Grignard reagents commonly used in organic synthesis reactions. It can react with aldehydes, ketones, esters and other compounds to form alcohols, carboxylates and other products, thus realizing the construction of carbon-carbon bonds. Due to the strong selectivity of Butylmagnesiumbromide to the ortho position, it is often used in the synthesis of organic compounds with sec-butyl substituents.
The preparation Butylmagnesiumbromide can generally be obtained by reacting magnesium powder with bromobutane in dry tetrahydrofuran. The reaction needs to be careful to avoid contact with moisture and oxygen, and the reaction temperature should be controlled at low temperature.
When using Butylmagnesiumbromide, you need to be careful to prevent it from reacting with moisture and oxygen in the air, and avoid contact with skin and eyes. Personal protective measures such as goggles and gloves should be used during operation. In addition, Butylmagnesiumbromide should be stored in dry, sealed containers, away from fire and oxidizing agents.
Butylmagnesiumbromide Grignard reagents commonly used in organic synthesis reactions. It can react with aldehydes, ketones, esters and other compounds to form alcohols, carboxylates and other products, thus realizing the construction of carbon-carbon bonds. Due to the strong selectivity of Butylmagnesiumbromide to the ortho position, it is often used in the synthesis of organic compounds with sec-butyl substituents.
The preparation Butylmagnesiumbromide can generally be obtained by reacting magnesium powder with bromobutane in dry tetrahydrofuran. The reaction needs to be careful to avoid contact with moisture and oxygen, and the reaction temperature should be controlled at low temperature.
When using Butylmagnesiumbromide, you need to be careful to prevent it from reacting with moisture and oxygen in the air, and avoid contact with skin and eyes. Personal protective measures such as goggles and gloves should be used during operation. In addition, Butylmagnesiumbromide should be stored in dry, sealed containers, away from fire and oxidizing agents.
Last Update：2024-04-10 22:29:15
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