1-Pentyne, 5-bromo-
1-Pentyne, 5-bromo-
CAS: 28077-72-7
Molecular Formula: C5H7Br
1-Pentyne, 5-bromo- - Names and Identifiers
| Name | 1-Pentyne, 5-bromo- |
| Synonyms | 5-Bromopentyne 1-BROMO-4-PENTYNE 5-Bromo-1-pentyne 5-broMopent-1-yne 1-Bromo-4-pentyne 4-PENTYNYL BROMIDE 1-Pentyne, 5-bromo- 1-Pentyne, 5-broMo- |
| CAS | 28077-72-7 |
| InChI | InChI=1S/C5H7Br/c1-2-3-4-5-6/h1H,3-5H2 |
1-Pentyne, 5-bromo- - Physico-chemical Properties
| Molecular Formula | C5H7Br |
| Molar Mass | 147.01 |
| Density | 1.361±0.06 g/cm3(Predicted) |
| Boling Point | 134 °C(Press: 763 Torr) |
| Solubility | Acetone, Dichloromethane |
| Appearance | Oil |
| Color | Pale Yellow |
| Storage Condition | 2-8℃ |
1-Pentyne, 5-bromo- - Introduction
1-Pentyne, 5-bromo-is an organic compound with the chemical formula C5H7Br. The following is a description of its nature, use, preparation and safety information:
Nature:
-Appearance: 1-Pentyne, 5-bromo-is a colorless liquid.
-Melting point and boiling point: Its melting point is -104 ℃, and its boiling point is 98-100 ℃.
-Density: The density is about 1.3 g/mL.
-Solubility: Soluble in organic solvents such as alcohols, ethers and non-polar solvents.
Use:
-Chemical reagent: 1-Pentyne, 5-bromo-is a commonly used chemical reagent, which can be used in organic synthesis reactions, such as alkylation, aldol, etc.
-Pharmaceutical research: The compound also has some applications in the pharmaceutical field, such as as an intermediate for drug synthesis.
Method:
The preparation method of-1-Pentyne, 5-bromo-can be obtained by reacting 5-bromo-3-pentanone with dry sodium hydroxide. 5-Bromo-3-pentanone is first reacted with sodium hydroxide in chloroform or dichloromethane solvent, followed by acidic hydrolysis to give the product 1-Pentyne, 5-bromo-.
Safety Information:
- 1-Pentyne, 5-bromo-is an organic solvent with high volatility, so care should be taken to avoid inhalation, swallowing or contact with skin and eyes.
-It is irritating and corrosive to the skin, eyes and respiratory system, so appropriate protective gloves, goggles and masks should be worn during operation.
-Store away from fire and oxidant, avoid high temperature and direct sunlight.
-If inhaled or exposed, immediately rinse the affected area and seek medical help.
Please note that the use and handling of chemical substances need to follow the appropriate safety procedures, and evaluate and take appropriate protective measures according to the specific situation.
Nature:
-Appearance: 1-Pentyne, 5-bromo-is a colorless liquid.
-Melting point and boiling point: Its melting point is -104 ℃, and its boiling point is 98-100 ℃.
-Density: The density is about 1.3 g/mL.
-Solubility: Soluble in organic solvents such as alcohols, ethers and non-polar solvents.
Use:
-Chemical reagent: 1-Pentyne, 5-bromo-is a commonly used chemical reagent, which can be used in organic synthesis reactions, such as alkylation, aldol, etc.
-Pharmaceutical research: The compound also has some applications in the pharmaceutical field, such as as an intermediate for drug synthesis.
Method:
The preparation method of-1-Pentyne, 5-bromo-can be obtained by reacting 5-bromo-3-pentanone with dry sodium hydroxide. 5-Bromo-3-pentanone is first reacted with sodium hydroxide in chloroform or dichloromethane solvent, followed by acidic hydrolysis to give the product 1-Pentyne, 5-bromo-.
Safety Information:
- 1-Pentyne, 5-bromo-is an organic solvent with high volatility, so care should be taken to avoid inhalation, swallowing or contact with skin and eyes.
-It is irritating and corrosive to the skin, eyes and respiratory system, so appropriate protective gloves, goggles and masks should be worn during operation.
-Store away from fire and oxidant, avoid high temperature and direct sunlight.
-If inhaled or exposed, immediately rinse the affected area and seek medical help.
Please note that the use and handling of chemical substances need to follow the appropriate safety procedures, and evaluate and take appropriate protective measures according to the specific situation.
Last Update：2024-04-09 20:49:11
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