Synthesis method of fructosamine perfume compound and flavour enhancing function for tobacco
A technology for compounds and spices, applied in the field of tobacco, can solve the problems of difficult reaction control, many by-products, difficult synthesis of compounds, etc., and achieves the effects of less side reactions, high product yield, and easy control of the reaction process.
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Embodiment 1
[0019] (1) Add 18g of ammonia water into the brown reaction bottle, add 45g of fructose to dissolve it while shaking, then cover the lid and pre-react the solution at room temperature of 15°C for 6h;
[0020] (2) Add 100ml of sodium hydroxide-methanol solution with a concentration of 2.5% to the above reaction solution to carry out catalytic reaction. After reacting for 20 minutes, place the reaction bottle in the refrigerator for 48 hours;
[0021] (3) Take out the reaction bottle, add 40ml of 10% sodium hydroxide-methanol solution, stir the solution with a glass rod until the precipitate is fully separated, and separate the precipitate (product) and the filtrate by suction filtration under reduced pressure. After the filtrate was concentrated to 20 ml under reduced pressure, 10 ml of 10% sodium hydroxide-methanol solution was added to precipitate the remaining product. The above products were combined and washed with anhydrous methanol and anhydrous ethanol respectively, and...
Embodiment 2
[0023] As described in Example 1, the refrigerated time of step (2) is changed to 24h, and other operations are the same as Example 1, and the product obtained is also light yellow odorless fructosamine powder, and the productive rate is 78%.
Embodiment 3
[0025] As described in Example 1, the refrigerated time of step (2) is changed to 72h, and other operations are the same as Example 1, and the product obtained is also light yellow odorless fructosamine powder, and the productive rate is 85%.
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