The synthesis of 3,3 , 4,4 -benzophenone tetracarboxylic acid by liquid phase air oxidation of 1,1-bis(3,4-dimethylphenyl)ethane in titanium reactor was studied.
2
摘要在水溶液中合成了铕和试的四元羧酸稀土配合物。
Europium and terbium rare earth complexes with tetra carboxylic acid were successfully prepared in aqueous solution.
L-Thiazolidine-2-thione-4-carboxylic acid ethyl ester was prepared from L-thiozolidine-2-thione-4-carboxylic acid and ethyl alcohol in the presence of the hydrate of ferric sulfate.
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