This flavour is synthesized by the ester interchange using diethyl oxalate and relative alcohol as materials.
这些香料都是以草酸二乙酯与相应的醇为原料，通过酯交换反应来合成的。
The invention relates to an interpenetrating polymer network prepared by in-situ ester interchange method and an application thereof.
本发明涉及一种原位酯交换法制备的互穿网络及其应用。
Plasticizer DOTP was prepared from ethylene glycol residue (major component is PET low polymer) using single step process in which alcoholysis and ester interchange were combined.
以聚酯生产中产生的下脚料——乙二醇残渣(主要含PET低聚物)为原料，采用辛醇合并醇解、酯交换一步法工艺，合成了增塑剂DOTP。
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