Preparation method of serinol
A technology of serinol and propylene glycol sodium salt, which is applied in the field of reduction reaction to prepare serinol, can solve the problems of large investment and high pressure in industrial production equipment, and achieve the effects of avoiding high-pressure catalytic hydrogenation, easy operation, and high product purity
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Embodiment 1
[0018] Add 150mL of water and 20g of 2-nitro-1,3-propanediol sodium salt into a 250mL three-necked flask, adjust the pH value to 5-7 with concentrated sulfuric acid, add 0.1g of 10% palladium / carbon catalyst, and raise the internal temperature to 85°C , 12.2 mL of 80% hydrazine hydrate was added dropwise under stirring, and stirring was continued for 2 hours after the addition, and filtered, and the yield of serinol was 95.8%.
Embodiment 2
[0020] The reaction medium is ethanol, the reaction temperature is 75° C., the other conditions are the same as in Example 1, and the yield of serinol is 85.6%.
Embodiment 3
[0022] The reaction medium is methanol, the reaction temperature is 50° C., the other conditions are the same as in Example 1, and the yield of serinol is 45.3%.
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