(1-Propynyl)bromomagnesium
1-propynylmagnesium bromide
CAS: 16466-97-0
Molecular Formula: C3H3BrMg
(1-Propynyl)bromomagnesium - Names and Identifiers
| Name | 1-propynylmagnesium bromide |
| Synonyms | 1-Propynylbromomagnesium (1-Propynyl)bromomagnesium Bromo(1-propynyl) magnesium 1-propynylmagnesium bromide 1-PROPYNYLMAGNESIUM BROMIDE 1-propynylmagnesium bromide solution 1-PROPYNYLMAGNESIUM BROMIDE SOLUTION, ~0 .5 M IN THF 1-Propynylmagnesium bromide, 0.5M solution in THF, AcroSeal 1-PROPYNYLMAGNESIUM BROMIDE, 0.5M SOLUTI ON IN TETRAHYDROFURAN |
| CAS | 16466-97-0 |
| InChI | InChI=1/C3H2Br.Mg/c1-2-3-4;/h3H2;/q;+1/rC3H2BrMg/c4-2-1-3-5/h2H2/q+1 |
| InChIKey | YVJBCTFVENNIOV-UHFFFAOYSA-M |
(1-Propynyl)bromomagnesium - Physico-chemical Properties
| Molecular Formula | C3H3BrMg |
| Molar Mass | 143.26 |
| Density | 0.941g/mLat 25°C |
| Melting Point | 53.5 °C(Solv: methanol (67-56-1)) |
| Boling Point | 65-67°C |
| Flash Point | <−30°F |
| Solubility | THF |
| Appearance | Pale Yellow Solution |
| BRN | 3929146 |
| Storage Condition | 2-8°C |
| Stability | Moisture Sensitive, Pyrophoric |
(1-Propynyl)bromomagnesium - Risk and Safety
| Risk Codes | R11 - Highly Flammable R14/15 - R34 - Causes burns R40 - Limited evidence of a carcinogenic effect R37 - Irritating to the respiratory system R19 - May form explosive peroxides |
| 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. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. 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.) |
| UN IDs | UN 3399 4.3/PG 1 |
| WGK Germany | 1 |
| FLUKA BRAND F CODES | 1-10 |
| HS Code | 29319090 |
(1-Propynyl)bromomagnesium - Introduction
1-propynylmagnesium bromide (chemical formula: C3H5BrMg) is an organic compound. Its nature is as follows:
1. Appearance: 1-propynylmagnesium bromide is a colorless or pale yellow crystal or powder solid.
2. Solubility: It is soluble in alcohols and Ether solvents, slightly soluble in non-polar solvents, but almost insoluble in water.
3. Melting Point: its melting point is about 166-170 ° C.
1-propynylmagnesium bromide is mainly used in organic synthesis reactions, such:
1. It is often used as a hydrogenation reagent in organic synthesis for addition reactions and reduction reactions, which can reduce carbonyl compounds to alcohols.
2. It can be used to construct carbon-carbon bonds, such as Vilger synthesis reaction and Sophie-Sachs synthesis reaction.
The preparation of 1-propynylmagnesium bromide is generally obtained by reacting propyne with magnesium bromide. The specific preparation method is as follows:
1. Under dry inert gas, react propyne with magnesium bromide.
2. After the reaction is completed, the target product is obtained by filtration or distillation under reduced pressure.
When using 1-propynylmagnesium bromide, you need to pay attention to the following safety information:
1. Since 1-propynylmagnesium bromide is a flammable solid, it should be kept away from open flames and heat sources.
2. Use with appropriate personal protective equipment, such as chemical goggles and protective gloves.
3. In the operation to avoid inhalation of its dust or solution splash to the skin, eyes or clothing, so as not to cause irritation or damage.
4. Store should be sealed and kept away from oxidants and water.
5. The compound must not be mixed with strong acids or oxidants to avoid toxic gases or violent reactions.
It should be noted that 1-propynylmagnesium bromide is an organometallic compound. When used, it should comply with laboratory safety procedures and be handled and stored in a suitable environment.
1. Appearance: 1-propynylmagnesium bromide is a colorless or pale yellow crystal or powder solid.
2. Solubility: It is soluble in alcohols and Ether solvents, slightly soluble in non-polar solvents, but almost insoluble in water.
3. Melting Point: its melting point is about 166-170 ° C.
1-propynylmagnesium bromide is mainly used in organic synthesis reactions, such:
1. It is often used as a hydrogenation reagent in organic synthesis for addition reactions and reduction reactions, which can reduce carbonyl compounds to alcohols.
2. It can be used to construct carbon-carbon bonds, such as Vilger synthesis reaction and Sophie-Sachs synthesis reaction.
The preparation of 1-propynylmagnesium bromide is generally obtained by reacting propyne with magnesium bromide. The specific preparation method is as follows:
1. Under dry inert gas, react propyne with magnesium bromide.
2. After the reaction is completed, the target product is obtained by filtration or distillation under reduced pressure.
When using 1-propynylmagnesium bromide, you need to pay attention to the following safety information:
1. Since 1-propynylmagnesium bromide is a flammable solid, it should be kept away from open flames and heat sources.
2. Use with appropriate personal protective equipment, such as chemical goggles and protective gloves.
3. In the operation to avoid inhalation of its dust or solution splash to the skin, eyes or clothing, so as not to cause irritation or damage.
4. Store should be sealed and kept away from oxidants and water.
5. The compound must not be mixed with strong acids or oxidants to avoid toxic gases or violent reactions.
It should be noted that 1-propynylmagnesium bromide is an organometallic compound. When used, it should comply with laboratory safety procedures and be handled and stored in a suitable environment.
Last Update：2024-04-10 22:29:15
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View History
(1-Propynyl)bromomagnesium
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