(3,4-Dimethylphenyl)phenyl-methanone
3,4'-DIMETHYLBENZOPHENONE
CAS: 13152-94-8;2571-39-3
Molecular Formula: C15H14O
(3,4-Dimethylphenyl)phenyl-methanone - Names and Identifiers
| Name | 3,4'-DIMETHYLBENZOPHENONE |
| Synonyms | 3,4-Dimethylbenzophenone 3,4'-DIMETHYLBENZOPHENONE (3,4-Dimethylphenyl)phenyl-methanone (3-methylphenyl)(4-methylphenyl)methanone (3-methylphenyl)-(4-methylphenyl)methanone Methanone, (3-methylphenyl)(4-methylphenyl)- |
| CAS | 13152-94-8 2571-39-3 |
| EINECS | 219-916-9 |
| InChI | InChI=1/C15H14O/c1-11-6-8-13(9-7-11)15(16)14-5-3-4-12(2)10-14/h3-10H,1-2H3 |
(3,4-Dimethylphenyl)phenyl-methanone - 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 |
(3,4-Dimethylphenyl)phenyl-methanone - 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. |
(3,4-Dimethylphenyl)phenyl-methanone - 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.
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
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