2,6-Difluorobenzoylamide
2,6-Difluorobenzamide
CAS: 18063-03-1
Molecular Formula: C7H5F2NO
2,6-Difluorobenzoylamide - Names and Identifiers
| Name | 2,6-Difluorobenzamide |
| Synonyms | uorobenzamide 2,6-Difluorbenzamid 2,6-Difluorobenzamide 2,6-Difluorobenzoylamide Fluorine benzaMide 2, 6-2 2,6-difluorobenzoic acid amide |
| CAS | 18063-03-1 |
| EINECS | 241-972-8 |
| InChI | InChI=1/C7H5F2NO/c8-4-2-1-3-5(9)6(4)7(10)11/h1-3H,(H2,10,11) |
| InChIKey | AVRQBXVUUXHRMY-UHFFFAOYSA-N |
2,6-Difluorobenzoylamide - Physico-chemical Properties
| Molecular Formula | C7H5F2NO |
| Molar Mass | 157.12 |
| Density | 1,199g/cm |
| Melting Point | 145-148 °C (lit.) |
| Boling Point | 51-52C/15Tor |
| Flash Point | 67.3°C |
| Solubility | ethanol: soluble5%, clear to turbid, colorless to light yellow |
| Vapor Presure | 0.622mmHg at 25°C |
| Appearance | White crystal |
| Color | Off-White |
| BRN | 2047480 |
| pKa | 14.54±0.50(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1,508 |
| MDL | MFCD00007972 |
| Physical and Chemical Properties | Appearance: White-like crystals |
| Use | It can be used as an intermediate for the synthesis of fluorinated benzoylurea pesticides, and can be used as a variety of insecticides and acaricides, such as fluifolide, difenuron, and difenuron. It is also used in medicine; Intermediates in pesticides and intermediates in organic synthesis for the synthesis of fluorobenzenes Acyl urea pesticide intermediates, from which can be prepared by the fluoride, borteuron, difenuron and other insecticidal, acaricide. It is also used in medicine, liquid crystal materials. |
2,6-Difluorobenzoylamide - Risk and Safety
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R20 - Harmful by inhalation |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 - Wear suitable gloves and eye/face protection S36/37 - Wear suitable protective clothing and gloves. |
| WGK Germany | 1 |
| RTECS | CV4355050 |
| HS Code | 29242990 |
| Hazard Class | IRRITANT |
2,6-Difluorobenzoylamide - Nature
Open Data Verified Data
white crystals. The melting point was 143-145 °c.
Last Update：2024-01-02 23:10:35
2,6-Difluorobenzoylamide - Preparation Method
Open Data Verified Data
prepared from 2,6-chlorobenzonitrile by fluorination and hydrolysis.
Last Update：2022-01-01 10:52:40
2,6-Difluorobenzoylamide - Use
Open Data Verified Data
This product and the role of phenyl chloroisocyanate, can be prepared by fluorine containing carbamate new insecticide v. Uron. This insecticide has a wide insecticidal spectrum, low toxicity to humans and animals, and little harm to natural enemies. It is a relatively good selective insecticide developed in recent years.
Last Update：2022-01-01 10:52:40
2,6-Difluorobenzoylamide - Safety
Open Data Verified Data
The product is packed with a cardboard drum lined with a plastic bag, with a net weight of 25kg per barrel, or packaged according to user requirements.
Last Update：2022-01-01 10:52:41
2,6-Difluorobenzoylamide - Reference Information
| LogP | 0.011-0.25 at 25℃ |
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| Uses | 2,6-difluorobenzamide is an important intermediate in the synthesis of benzoylurea insecticides. It is used to synthesize the next intermediate 2,6-difluorobenzoyl isocyanate, and finally obtain pesticide varieties such as flubolluron, deworm urea, fluidinone, and lice urea. You can also use 2, 6-Difluorobenzamide is directly used in the synthesis of pyrethroid and flubolluron. This product is used as an intermediate for the synthesis of fluorobenzoylurea pesticides. From it, a variety of insecticides and acaricides such as fluoroburon, Dingchonglong, and dewort urea can be prepared. It is also used in medicine and liquid crystal materials. The product is lined with plastic bags in cardboard barrels with a net weight of 25kg. It is used as an intermediate for the synthesis of fluorobenzoylurea pesticides. It can produce a variety of insecticides and acaricides such as flubolluron, Dingchonglong, and dewort urea. It is also used in medicine |
| production method | obtained by hydrolysis of 2,6-difluorobenzonitrile. The reaction was carried out in 90% sulfuric acid at a hydrolysis temperature of 70°C. The preparation method is to use sulfuric acid as a catalyst, 2, 6-difluorobenzonitrile and water undergo a nucleophilic addition reaction to generate 2, 6-difluorobenzamide sulfate, neutralize sulfuric acid with alkali, 2, 6-Difluorobenzamide can be free. The reaction equation is shown in the figure: 2, 6-difluorobenzonitrile and 90% sulfuric acid are added into an enamel reaction kettle, stirred and reacted at 65~70 ℃ for 5 hours, then neutralized with NaOH solution to pH = 6, filtered at a temperature below 20 ℃, washed with a small amount of water to remove the adsorbed sodium sulfate, and dried to obtain 2, 6-difluorobenzamide. |
Last Update：2024-04-09 20:49:11
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