tert-Butyl terephthalate
4-(tert-butoxycarbonyl)benzoic acid
CAS: 20576-82-3
Molecular Formula: C12H14O4
tert-Butyl terephthalate - Names and Identifiers
tert-Butyl terephthalate - Physico-chemical Properties
| Molecular Formula | C12H14O4 |
| Molar Mass | 222.24 |
| Density | 1.173g/cm3 |
| Melting Point | 209-212(dec.) |
| Boling Point | 351.8°C at 760 mmHg |
| Flash Point | 132.8°C |
| Solubility | DMSO (Slightly), Ethyl Acetate (Slightly). Methanol (Slightly) |
| Vapor Presure | 1.49E-05mmHg at 25°C |
| Appearance | Solid |
| Color | White to Off-White |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.533 |
tert-Butyl terephthalate - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Hazard Note | Irritant |
tert-Butyl terephthalate - Introduction
4-(tert-butoxycarbonyl)benzoic acid is an organic compound with the chemical formula C12H16O4. It has the following properties:
1. Appearance: It is a colorless to light yellow crystalline solid.
2. Melting point: Its melting point range is 82-86 degrees Celsius.
3. Solubility: It is easily soluble in organic solvents, such as ethanol, dimethylformamide and dichloromethane.
4. Stability: It is stable at room temperature, but may decompose at high temperature.
The main use of 4-(tert-butoxycarbonyl)benzoic acid is as an important compound in organic synthesis, which can be used in the synthesis of drugs, dyes, fragrances and coatings. It is commonly used as an esterifying agent, acylating agent and acylating agent.
The method for preparing 4-(tert-butoxycarbonyl)benzoic acid can be obtained by reacting benzoic acid with tert-butanol. The specific preparation method is as follows:
1. Benzoic acid and tert-butyl alcohol were mixed in a molar ratio of 1:1.2.
2. Slowly drop 0.5 moles of sulfuric acid or dimethyl sulfate as a catalyst at low temperature.
3. During the reaction, keep the reaction temperature at 0-5 degrees Celsius and stir well.
4. After completion of the reaction, the reaction mass was filtered and washed with cold ether.
5. Finally, the product obtained by washing is dried to obtain 4-(tert-butoxycarbonyl)benzoic acid.
Regarding safety information, 4-(tert-butoxycarbonyl)benzoic acid is a chemical, please note the following safety precautions:
1. Use should wear appropriate protective gloves, protective glasses and protective masks and other personal protective equipment.
2. Avoid skin contact and inhalation of powder. In case of accidental contact, rinse immediately with plenty of water.
3. Storage should avoid contact with oxidants and strong acids to avoid dangerous reactions.
4. If ingested by mistake or other accidents occur, seek medical attention immediately and show the safety data sheet to the doctor.
1. Appearance: It is a colorless to light yellow crystalline solid.
2. Melting point: Its melting point range is 82-86 degrees Celsius.
3. Solubility: It is easily soluble in organic solvents, such as ethanol, dimethylformamide and dichloromethane.
4. Stability: It is stable at room temperature, but may decompose at high temperature.
The main use of 4-(tert-butoxycarbonyl)benzoic acid is as an important compound in organic synthesis, which can be used in the synthesis of drugs, dyes, fragrances and coatings. It is commonly used as an esterifying agent, acylating agent and acylating agent.
The method for preparing 4-(tert-butoxycarbonyl)benzoic acid can be obtained by reacting benzoic acid with tert-butanol. The specific preparation method is as follows:
1. Benzoic acid and tert-butyl alcohol were mixed in a molar ratio of 1:1.2.
2. Slowly drop 0.5 moles of sulfuric acid or dimethyl sulfate as a catalyst at low temperature.
3. During the reaction, keep the reaction temperature at 0-5 degrees Celsius and stir well.
4. After completion of the reaction, the reaction mass was filtered and washed with cold ether.
5. Finally, the product obtained by washing is dried to obtain 4-(tert-butoxycarbonyl)benzoic acid.
Regarding safety information, 4-(tert-butoxycarbonyl)benzoic acid is a chemical, please note the following safety precautions:
1. Use should wear appropriate protective gloves, protective glasses and protective masks and other personal protective equipment.
2. Avoid skin contact and inhalation of powder. In case of accidental contact, rinse immediately with plenty of water.
3. Storage should avoid contact with oxidants and strong acids to avoid dangerous reactions.
4. If ingested by mistake or other accidents occur, seek medical attention immediately and show the safety data sheet to the doctor.
Last Update：2024-04-09 21:00:56
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