2571-39-3 - Names and Identifiers
2571-39-3 - Physico-chemical Properties
Molecular Formula | C15H14O
|
Molar Mass | 210.27 |
Density | 1.0232 (rough estimate) |
Melting Point | 70-74 °C |
Boling Point | 309.8°C (rough estimate) |
Flash Point | 113 °C |
Vapor Presure | 3.43E-05mmHg at 25°C |
Appearance | Crystalline powder |
BRN | 1948955 |
Storage Condition | Room Temprature |
Refractive Index | 1.5725 (estimate) |
MDL | MFCD00008525 |
2571-39-3 - Risk and Safety
Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin.
|
Safety Description | 24/25 - Avoid contact with skin and eyes.
|
2571-39-3 - Introduction
3,4-Dimethylbenzophenone, also known as ketocarbonate or Benzoin. The following is a description of its nature, use, preparation and safety information:
Nature:
-Appearance: 3,4-Dimethylbenzophenone is a white crystalline solid.
-Solubility: It is almost insoluble in water, and has high solubility in organic solvents such as ethanol and dimethylformamide.
-Melting point: The melting point of 3,4-dimethylbenzophenone is about 132-134 degrees Celsius.
-Chemical properties: It is an electrophilic reagent that can participate in various reactions such as hydrogen bond formation, oxidation-reduction reaction between ketone carbon and methyl.
Use:
- 3,4-Dimethyl benzophenone is mainly used as a reagent for organic synthesis reactions.
-It can be used as an electrophilic reagent to participate in electrophilic addition reactions, ketone carbonate formation and other reactions.
-It can also be used as a photosensitizer for lithography, light curing and other fields.
Preparation Method:
One method for the preparation of -3,4-dimethyl benzophenone is the synthesis reaction of barone. The steps of the reaction are as follows: First, styrene is reacted with excess bromine under light or ultraviolet light to form β-bromostyrene. The β-bromostyrene is then reacted with a hydroxide (e. g., NaOH) to form 3,4-dimethylbenzophenone.
-Another preparation method is to react acetophenone and sodium bromide under alkaline conditions to generate 3,4-dimethyl benzophenone.
Safety Information:
- 3,4-Dimethylbenzophenone is less toxic.
-Avoid skin contact and inhalation when using.
-Ruyi external contact to the skin, should immediately rinse with plenty of water.
-If inhaled, move immediately to a well-ventilated place.
-It is recommended to wear appropriate protective gloves and breathing apparatus during operation.
-When using and storing, please follow the safe operating procedures and place it out of the reach of children.
Last Update:2024-04-09 21:01:54