21450-90-8
2-Methyl-1-naphthylmagnesium bromide
CAS: 21450-90-8
Molecular Formula: C11H9BrMg
21450-90-8 - Names and Identifiers
21450-90-8 - Physico-chemical Properties
| Molecular Formula | C11H9BrMg |
| Molar Mass | 245.4 |
| Density | 0.921 g/mL at 25 °C (lit.) |
| Boling Point | 65 °C (lit.) |
| Flash Point | 1°F |
| Appearance | Liquid |
| Color | Yellow to brown |
| Storage Condition | 2-8°C |
| Sensitive | Air & Moisture Sensitive |
21450-90-8 - Risk and Safety
| Risk Codes | R11 - Highly Flammable R14 - Reacts violently with water R19 - May form explosive peroxides R22 - Harmful if swallowed R34 - Causes burns R40 - Limited evidence of a carcinogenic effect R36/37/38 - Irritating to eyes, respiratory system and skin. |
| 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. 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.) S36/37 - Wear suitable protective clothing and gloves. |
| UN IDs | UN 2924 3/PG 2 |
| WGK Germany | 1 |
| HS Code | 29310099 |
| Hazard Class | 3 |
21450-90-8 - Introduction
bromide, chemical formula for C11H9BrMg, is an organic magnesium compound.
Nature:
1. Appearance: bromide colorless or light yellow solid.
2. Solubility: Soluble in ether and carbon disulfide, react with water to generate a mixture of methanol and magnesium bromide.
3. Melting point: about 200°C.
Use:
1. bromide is an important organic synthesis reagent, which is commonly used in Grignard reaction, cycloaddition reaction and carbon-carbon bond formation reaction in organic synthesis.
2. It can be used to synthesize organic compounds containing methyl and 1-naphthyl groups, such as naphthyl methyl ketone and 2-methyl -1-naphthyl alcohol.
Preparation Method:
bromide is usually prepared by Grignard reagent method, that is, 2-methyl -1-naphthyl bromide and magnesium powder are reacted in ether to form. The reaction can be carried out at room temperature, but an increase in temperature accelerates the reaction rate.
Safety Information:
1. The bromide may be harmful to human health. Avoid inhalation or contact with skin and eyes.
2. Wear appropriate protective gloves, glasses and protective clothing during use or handling.
3. should be operated in a well-ventilated place to avoid eye and respiratory irritation of the vapor.
4. fire or high temperature may occur when burning and explosion, should be stored in a cool, dry, ventilated place.
Nature:
1. Appearance: bromide colorless or light yellow solid.
2. Solubility: Soluble in ether and carbon disulfide, react with water to generate a mixture of methanol and magnesium bromide.
3. Melting point: about 200°C.
Use:
1. bromide is an important organic synthesis reagent, which is commonly used in Grignard reaction, cycloaddition reaction and carbon-carbon bond formation reaction in organic synthesis.
2. It can be used to synthesize organic compounds containing methyl and 1-naphthyl groups, such as naphthyl methyl ketone and 2-methyl -1-naphthyl alcohol.
Preparation Method:
bromide is usually prepared by Grignard reagent method, that is, 2-methyl -1-naphthyl bromide and magnesium powder are reacted in ether to form. The reaction can be carried out at room temperature, but an increase in temperature accelerates the reaction rate.
Safety Information:
1. The bromide may be harmful to human health. Avoid inhalation or contact with skin and eyes.
2. Wear appropriate protective gloves, glasses and protective clothing during use or handling.
3. should be operated in a well-ventilated place to avoid eye and respiratory irritation of the vapor.
4. fire or high temperature may occur when burning and explosion, should be stored in a cool, dry, ventilated place.
Last Update：2024-04-10 22:29:15
