Method for synthesizing N-hydroxy phthalimide with solid-phase process
A hydroxyphthalimide, solid-phase synthesis technology, applied in the direction of organic chemistry and the like, can solve the problems of high energy consumption, waste water pollution, low yield and the like, achieve low energy consumption, improve yield and purity, high yield effect
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Embodiment 1
[0021] Take 37.4g of phthalic anhydride and 37.4mg of sodium chloride, mix them, and grind them for 4.5 hours under the protection of nitrogen. Then add 17.7 g of hydroxylamine hydrochloride and 17.7 mg of ferric oxide, grind at 90° C. for 4 hours under nitrogen protection, wash with water, and dry to obtain 38.3 g of white solid with a purity of 98.5%.
Embodiment 2
[0023] Take 74.0 g of phthalic anhydride and 74 mg of sodium chloride, mix them, and grind them for 4.5 hours under the protection of nitrogen. Then add 35 g of hydroxylamine hydrochloride and 35 mg of ferric oxide, grind at 95° C. for 5 hours under nitrogen protection, wash with water, and dry to obtain 77.0 g of white solid with a purity of 98.0%.
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