Ethyl Di-o-tolylphosphonoacetate [Horner-Emmons Reagent] - Names and Identifiers
Ethyl Di-o-tolylphosphonoacetate [Horner-Emmons Reagent] - Physico-chemical Properties
Molecular Formula | C18H21O5P
|
Molar Mass | 348.33 |
Density | 1.19 |
Boling Point | 240 °C / 3mmHg |
Flash Point | 241.623°C |
Vapor Presure | 0mmHg at 25°C |
Appearance | clear liquid |
Color | Colorless to Yellow to Orange |
Storage Condition | Room Temprature |
Refractive Index | 1.5330-1.5350 |
MDL | MFCD01321166 |
Ethyl Di-o-tolylphosphonoacetate [Horner-Emmons Reagent] - Introduction
Pb, also known as LEPA, is an organophosphorus compound. It has the following properties and uses:
Nature:
-Appearance: colorless transparent liquid.
-Solubility: Soluble in organic solvents, such as ethanol and dimethylformamide.
-Stability: Stable at room temperature, but may decompose under high temperature or light.
-Combustibility: flammable, may burn in case of open flame or high temperature.
Use:
- LEPA can be used as a catalyst in organic synthesis, especially with good catalytic activity in carbonylation reactions.
-It can also be used to synthesize aluminum phosphate resin, and is widely used in surface coating, plastics and adhesives.
Method:
The preparation of
is usually carried out through a three-step reaction:
1. Toluene reacts with phosphorous chloride to obtain Chlorinated Diphenyl phosphorus (DPP-Cl).
2. DPP-Cl reacts with sodium hydroxide to obtain diphenyl phosphate (DPPO).
3. Finally, DPPO is reacted with ethoxyacetic acid to form fluorene (LEPA).
Safety Information:
- LEPA is an organic phosphorus compound that may cause harm to the human body. Exposure to or inhalation of LEPA may cause irritation, allergy, or toxic symptoms.
-It is a flammable substance, avoid contact with fire sources.
-Use good ventilation and wear appropriate protective equipment, such as gloves and goggles.
-Be careful when storing and handling LEPA, and follow chemical safety procedures.
Last Update:2024-04-09 21:00:56