The preparation of a certain agent
To make a substance, the core is "Diethyl Ethoxy Methylene Malonate Structure". Prepare the materials first, measure accurately, and do not make mistakes.

In the purifier, put the raw materials in sequence. There are alcohols, the amount of which should be appropriate, accompanied by a catalytic agent, so that the reaction speed and smooth. Temperature should be heated, slow and uniform, not suddenly high or low.

During this period, observe it carefully, see its color change and state shift, and know the progress of the reaction. When it is completed, apply a separation method to remove its impurities, and obtain purity.

This system also needs to be careful and steady, and follow the law to become its "Diethyl Ethoxy Methylene Malonate Structure" quality for other uses.