| http://www.w3.org/ns/prov#value | - nsymmetrical hydrazine is reacted with the vinyl aromatic acid chloride in the presence of an inert solvent such as a low boiling hydrocarbon solvent, commercially available as Skelly F, dimethyl sulfoxide, acetonitrile, dioxane, tetrahydrofuran, ethers, e.g. diethyl ether, glymes (i.e., dimethyl ethers of ethylene glycol), and the like.
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