Sucrose → HCID 57476952, compound

Participants

Reaction Steps

86 g of ion exchange water and 40 g (1 mole) of sodium hydroxide were added to a 1 L four-necked separable flask equipped with a stirrer, a reflux condenser and a dropping funnel to dissolve the sodium hydroxide in the ion exchange water. 68.4 g (0.2 moles) of sucrose was further added, and reacted at 80° C. for 90 minutes while stirring to obtain an alkaline sucrose aqueous solution. 121 g (1 mole) of allyl bromide was added dropwise into the alkaline sucrose aqueous solution for 2 hours while controlling rapid heating caused by an etherification reaction Thereafter, the etherification reaction was completed by aging the reaction solution at 80° C. for 3 hours. After cooling, 400 g of ion exchange water was added to the reaction solution taken from the separable flask, and unwanted oils were removed to obtain 700 g of a crude sucrose allyl ether aqueous solution. Hydrochloric acid was further added to adjust a pH value to 7, and the aqueous solution was then concentrated to 240 g using a rotary evaporator. Salts, such as sodium bromide and the like, which were by-products, were removed from the aqueous solution by adding 200 g of ethanol, followed by performing precipitation and filtration. Subsequently, 88 g of purified water-soluble sucrose allyl ether was obtained by distilling an excessive amount of water from the aqueous solution using a rotary evaporator. Here, the etherification degree of the water-soluble sucrose allyl ether was 2.8.

Provenance & Evidence