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在氯霉素生产中间体 L-threo-1-对硝基苯基-2-乙酰氨基-1,3-丙二醇(单醋醇)的光氧化反应中,以特制人工光源代替普通高压汞灯,产物收率及质量均获较好结果。若再加入溴负离子消除剂,可进一步提高单位光照时间的收率。如以日光为光源,效果相仿。最优条件下的实验室扩大实验表明,其氧化产物,1-对硝基苯基-2-乙酰氨基-3-羟基丙酮(单醋酮)制备一步,单位耗电量将大幅度降低。
In the photooxidation of L-threo-1-p-nitrophenyl-2-acetamido-1,3-propanediol (monoacetate), which is an intermediate in the production of chloramphenicol, a special artificial light source was used instead of the common high- The yield and quality of the product gave better results. If you add bromide anion eliminators, you can further improve the yield per unit of light time. Such as the sun as a light source, the effect is similar. Laboratory experiments under the optimal conditions showed that the unit power consumption of the oxidized product, 1-p-nitrophenyl-2-acetamido-3-hydroxyacetone was reduced significantly.