TRANS-4-BROMO-BETA-NITROSTYRENE - Names and Identifiers
TRANS-4-BROMO-BETA-NITROSTYRENE - Physico-chemical Properties
Molecular Formula | C8H6BrNO2
|
Molar Mass | 228.04 |
Density | 1.596±0.06 g/cm3(Predicted) |
Melting Point | 148-150°C(lit.) |
Boling Point | 318.9±17.0 °C(Predicted) |
Flash Point | 146.7°C |
Vapor Presure | 0.000654mmHg at 25°C |
Appearance | Crystalline Powder or Powder |
Color | Yellow to yellow-green |
Storage Condition | Room Temprature |
Refractive Index | 1.636 |
TRANS-4-BROMO-BETA-NITROSTYRENE - Risk and Safety
Hazard Symbols | Xi - Irritant
|
Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin.
|
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36 - Wear suitable protective clothing.
|
WGK Germany | 3 |
TRANS-4-BROMO-BETA-NITROSTYRENE - Introduction
trans-4-bromo-beta-nitrostyrene is an organic compound with the chemical formula C8H7BrNO2. It is a solid with the form of yellow crystals. The following is a description of some of the properties, uses, preparation and safety information of the compound:
Nature:
-Appearance: Yellow crystal
-melting point: 63-66 ℃
-Boiling point: 273-274 ℃
-Density: 1.56g/cm3
-Solubility: Insoluble in water, soluble in organic solvents such as ethanol, ether and dichloromethane
-Toxicity: The compound is toxic and requires careful handling and storage
Use:
- trans-4-bromo-beta-nitrostyrene can be used as organic synthesis intermediates for the preparation of a variety of drugs, dyes and pesticides and other compounds.
-It has important applications in the asymmetric nucleophilic substitution reaction, and can be used to synthesize organic compounds with chirality.
Preparation Method:
-A commonly used preparation method is to synthesize trans-4-bromo-beta-nitrostyrene by bromination of p-nitrostyrene. Bromination reaction usually uses bromine or subbromide and nitrostyrene to react under appropriate solvent conditions, and the target product is obtained through the steps of reaction, filtration and purification.
Safety Information:
- trans-4-bromo-beta-nitrostyrene are organic compounds with certain toxicity. During use or handling, appropriate safety measures should be taken, such as wearing gloves, glasses and protective clothing, to ensure a well-ventilated workplace.
-The compound should be stored in a sealed container, away from ignition and oxidizing agents, and avoid contact with skin, eyes and mucous membranes.
-Avoid dust, fumes or vapors when handling the compound to avoid inhalation or ingestion.
-In case of any discomfort or unexpected condition, seek medical attention immediately.
Last Update:2024-04-09 02:00:46