Benzene, 1-ethynyl-3,5-diMethoxy-
1-ethynyl-3,5-dimethoxybenzene
CAS: 171290-52-1
Molecular Formula: C10H10O2
Benzene, 1-ethynyl-3,5-diMethoxy- - Names and Identifiers
| Name | 1-ethynyl-3,5-dimethoxybenzene |
| Synonyms | 3,5-Dimethoxyphenyl acetylene 1-ethynyl-3,5-dimethoxybenzene 1-Ethylnyl-3,5-dimethoxybenzene -ETHYNYL-3 5-DIMETHOXYBENZENE 98 Benzene, 1-ethynyl-3,5-diMethoxy- 1-ETHYNYL-3 5-DIMETHOXYBENZENE 98 |
| CAS | 171290-52-1 |
| InChI | InChI=1/C10H10O2/c1-4-8-5-9(11-2)7-10(6-8)12-3/h1,5-7H,2-3H3 |
| InChIKey | HUSBBWQIJMRKLI-UHFFFAOYSA-N |
Benzene, 1-ethynyl-3,5-diMethoxy- - Physico-chemical Properties
| Molecular Formula | C10H10O2 |
| Molar Mass | 162.19 |
| Density | 1.06±0.1 g/cm3 (20 ºC 760 Torr) |
| Melting Point | 44-48 °C (lit.) |
| Boling Point | 264.1±30.0℃ (760 Torr) |
| Flash Point | >230°F |
| Vapor Presure | 0.0162mmHg at 25°C |
| Storage Condition | Keep in dark place,Sealed in dry,Room Temperature |
| Refractive Index | 1.522 |
| Physical and Chemical Properties | WGK Germany:3 |
Benzene, 1-ethynyl-3,5-diMethoxy- - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | R36 - Irritating to the eyes R42/43 - May cause sensitization by inhalation and skin contact. |
| Safety Description | S22 - Do not breathe dust. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37 - Wear suitable protective clothing and gloves. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
| WGK Germany | 3 |
Benzene, 1-ethynyl-3,5-diMethoxy- - Introduction
1-ethynyl-3,5-dimethoxybenzene is an organic compound with the following properties:
1. Nature: 1-ethynyl-3,5-dimethoxybenzene is a colorless to light yellow liquid with a unique aromatic smell. It is relatively stable at room temperature and insoluble in water, but soluble in organic solvents such as ethanol and dimethylformamide.
2. Use: 1-ethynyl-3,5-dimethoxybenzene has a wide range of applications. It is an important intermediate compound, commonly used in organic synthesis reactions, such as alkynylation, Cycloaddition and coupling reactions. In addition, it can also be used as a component of dyes and coatings, as well as drug synthesis in the pharmaceutical field.
3. Preparation method: 1-ethynyl-3,5-dimethoxybenzene has various preparation methods, one of which is commonly used by P-methoxyphenylacetylene and appropriate amount of methyl lithium reaction. The specific preparation process needs to be carried out under the protection of inert gas, the temperature and reaction time are controlled, and the by-product generation of the reaction is controlled.
4. Safety information: When using 1-ethynyl-3,5-dimethoxybenzene, you should pay attention to safe operations. It is a flammable liquid that avoids contact with open flames and high-temperature substances. When in contact with the skin, it may cause irritation and allergic reactions, so protective gloves and goggles should be worn. It should also be kept away from children and animals. Follow the relevant safety guidelines and regulations during use or storage. In case of leakage or accident, corresponding emergency measures should be taken immediately and professional guidance should be sought.
1. Nature: 1-ethynyl-3,5-dimethoxybenzene is a colorless to light yellow liquid with a unique aromatic smell. It is relatively stable at room temperature and insoluble in water, but soluble in organic solvents such as ethanol and dimethylformamide.
2. Use: 1-ethynyl-3,5-dimethoxybenzene has a wide range of applications. It is an important intermediate compound, commonly used in organic synthesis reactions, such as alkynylation, Cycloaddition and coupling reactions. In addition, it can also be used as a component of dyes and coatings, as well as drug synthesis in the pharmaceutical field.
3. Preparation method: 1-ethynyl-3,5-dimethoxybenzene has various preparation methods, one of which is commonly used by P-methoxyphenylacetylene and appropriate amount of methyl lithium reaction. The specific preparation process needs to be carried out under the protection of inert gas, the temperature and reaction time are controlled, and the by-product generation of the reaction is controlled.
4. Safety information: When using 1-ethynyl-3,5-dimethoxybenzene, you should pay attention to safe operations. It is a flammable liquid that avoids contact with open flames and high-temperature substances. When in contact with the skin, it may cause irritation and allergic reactions, so protective gloves and goggles should be worn. It should also be kept away from children and animals. Follow the relevant safety guidelines and regulations during use or storage. In case of leakage or accident, corresponding emergency measures should be taken immediately and professional guidance should be sought.
Last Update：2024-04-09 20:52:54
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