2-acetoxymethylfuran
Furfuryl acetate
CAS: 623-17-6
Molecular Formula: C7H8O3
2-acetoxymethylfuran - Names and Identifiers
2-acetoxymethylfuran - Physico-chemical Properties
| Molecular Formula | C7H8O3 |
| Molar Mass | 140.14 |
| Density | 1.118g/mLat 25°C(lit.) |
| Boling Point | 175-177°C(lit.) |
| Flash Point | 150°F |
| JECFA Number | 739 |
| Water Solubility | 0.5-1.0 g/100 mL at 23 ºC |
| Vapor Presure | 1.06mmHg at 25°C |
| Appearance | clear liquid |
| Color | colorless |
| BRN | 116128 |
| Storage Condition | 2-8°C |
| Refractive Index | n20/D 1.462(lit.) |
| Physical and Chemical Properties | Colorless liquid. Boiling point of 1.1175-177 deg C, the relative density (20/4 deg C) 1.4627, refractive index (nD20). Soluble in alcohol and ether, insoluble in water, in the air to see light brown. |
| Use | Used as a flavorant |
2-acetoxymethylfuran - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S24/25 - Avoid contact with skin and eyes. S37/39 - Wear suitable gloves and eye/face protection S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| WGK Germany | 3 |
| RTECS | LU9120000 |
| TSCA | Yes |
| HS Code | 29321900 |
| Hazard Note | Irritant |
2-acetoxymethylfuran - Reference Information
| FEMA | 2490 | FURFURYL ACETATE |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Introduction | furfuryl acetate, also known as methyl furan acetate, can be used as fuel, resin, flavor, flavor intermediates, solvent, etc. Furan perfume is an important new type of spices, so far, the world has been extracted from a variety of plants and identified more than 200 kinds of furan derivatives aroma components, synthesis of more than 100 kinds of furan perfume, there are 13 kinds of ester compounds of furoic acid and furfuryl alcohol in nearly one hundred kinds of furan spices approved for use, which can be used as flavor additives and flavor modifiers for food and beverages, and can also be used in cosmetics and other industries, it is an urgent need for synthetic spices in China. Furfuryl alcohol ester flavor is mainly fruit flavor, such as acetic acid furfuryl Ester is fruit flavor, propionic acid furfuryl Ester is pear flavor, pentanoic acid furfuryl Ester is fruit flavor. |
| preparation | Add 50ml of toluene to a 3-necked flask, add furfuryl alcohol (29.3g,0.3mol) sequentially, sodium acetate (12.2g,0.15mol), acetic anhydride (36.7g,0.33mol), stirring reflux for 4H, the reaction solution was poured into ml of water, stirred and left to stand after separating the organic phase, the aqueous phase was extracted with toluene, the organic phases were combined and dried with anhydrous sodium carbonate. The solvent was distilled off, and the compound methyl acetate furan (41.2g, colorless liquid, yield 98%) was obtained by distillation under reduced pressure. |
| toxicity | GRAS(FEMA). |
| usage limit | FEMA(mg/kg): Beverage 11; Cold beverage 17; Candy 37; Baked product 1.0440; gum 500. |
| Use | used as an intermediate, solvent for dyes, resins, fragrances. use as flavorant |
| production method | furan methanol is obtained by reacting with acetic anhydride. 1L of benzene, 6.1g(6.4mol) of furanmethanol, 225g of sodium acetate and 650g (mol) of acetic anhydride were heated under reflux for 4H, the reaction was complete, cooled, and the reaction was poured into 4L of cold water, the upper layer was separated, and the excess acetic anhydride was decomposed with 500ml of a 5% sodium carbonate solution and washed with 3L of water. Then, benzene was distilled off under normal pressure and then distilled under reduced pressure to collect a fraction at 70 ° C. (0.93kPa) to obtain 750-87% G of furfuryl acetate in a yield of 93%. |
Last Update：2024-04-09 20:52:54
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