3-acetyl-2,7-dimethyl-5H-(1)benzopyrano-(2,3-B)py
3-acetyl-2,7-dimethyl-5H-(1)benzopyrano-(2,3-B)py
CAS: 67867-48-5
Molecular Formula: C16H13NO3
3-acetyl-2,7-dimethyl-5H-(1)benzopyrano-(2,3-B)py - Names and Identifiers
| Name | 3-acetyl-2,7-dimethyl-5H-(1)benzopyrano-(2,3-B)py |
| Synonyms | 3-acetyl-2,7-dimethyl-5H-(1)benzopyrano-(2,3-B)py 3-ACETYL-2,7-DIMETHYL-5H-CHROMENO[2,3-B]PYRIDIN-5-ONE 3-acetyl-2,7-dimethyl-5H-[1]benzopyrano[2,3-b]pyridin-5-on 3-Acetyl-2,7-dimethyl-5H[1]benzopyrano-[2,b]-pyridine-5-one 3-ACETYL-2,7-DIMETHYL-5 H-[1]BENZOPYRANO[2,3-B]PYRIDIN-5-ONE 3-Acetyl-2,7-dimethyl-5-oxo-(5H)-[1]benzopyrano[2.3-b]pyridin-5-one |
| CAS | 67867-48-5 |
| InChI | InChI=1/C16H13NO3/c1-8-4-5-14-12(6-8)15(19)13-7-11(10(3)18)9(2)17-16(13)20-14/h4-7H,1-3H3 |
3-acetyl-2,7-dimethyl-5H-(1)benzopyrano-(2,3-B)py - Physico-chemical Properties
| Molecular Formula | C16H13NO3 |
| Molar Mass | 267.28 |
| Density | 1.267g/cm3 |
| Melting Point | 185-189°C(lit.) |
| Boling Point | 469.1°C at 760 mmHg |
| Flash Point | 237.5°C |
| Vapor Presure | 5.67E-09mmHg at 25°C |
| Refractive Index | 1.611 |
3-acetyl-2,7-dimethyl-5H-(1)benzopyrano-(2,3-B)py - 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 |
3-acetyl-2,7-dimethyl-5H-(1)benzopyrano-(2,3-B)py - Introduction
3-acetyl-2, 7-dimethy1-5H-(1)benzopyrano-(2,3-B)py is an organic compound whose chemical formula is C16H16O2.
The compound has the following properties:
-Appearance: colorless crystal or crystalline powder
-melting point: about 160-165 ℃
-Solubility: Slightly soluble in water, soluble in most organic solvents such as ethanol, methanol, dichloromethane, etc.
3-acetyl-2,7-dimethy1-5H-(1)benzopyrano-(2,3-B)py is mainly used as a pharmaceutical intermediate and a raw material for organic synthesis.
The method of preparing the compound can be through the following reaction path:
1. with 1-pyridine formaldehyde as the starting material, after condensation reaction with acetylacetone reaction, 3-acetyl -2-acetyl methyl -1-pyridine condensate.
2. using acetylacetone as starting material, 3-acetyl-2, 7-dimethy1-5H-(1)benzopyrano-(2,3-B)py was generated by direct acylation reaction.
Regarding safety information, as specific toxicity data are not available, use the compound in strict compliance with laboratory safety practices and wear appropriate personal protective equipment. If the compound needs to be used, be sure to operate under the guidance of experienced personnel and ensure proper ventilation conditions.
The compound has the following properties:
-Appearance: colorless crystal or crystalline powder
-melting point: about 160-165 ℃
-Solubility: Slightly soluble in water, soluble in most organic solvents such as ethanol, methanol, dichloromethane, etc.
3-acetyl-2,7-dimethy1-5H-(1)benzopyrano-(2,3-B)py is mainly used as a pharmaceutical intermediate and a raw material for organic synthesis.
The method of preparing the compound can be through the following reaction path:
1. with 1-pyridine formaldehyde as the starting material, after condensation reaction with acetylacetone reaction, 3-acetyl -2-acetyl methyl -1-pyridine condensate.
2. using acetylacetone as starting material, 3-acetyl-2, 7-dimethy1-5H-(1)benzopyrano-(2,3-B)py was generated by direct acylation reaction.
Regarding safety information, as specific toxicity data are not available, use the compound in strict compliance with laboratory safety practices and wear appropriate personal protective equipment. If the compound needs to be used, be sure to operate under the guidance of experienced personnel and ensure proper ventilation conditions.
Last Update：2024-04-09 21:04:16
