研究了在钛材反应器中液相空气氧化3，3'，4，4'-四甲基二苯乙烷制备3，3'，4，4'-二苯甲酮四羧酸的反应规律。
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.
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.
在硫酸铁水合物催化下由L- 四氢噻唑- 2- 硫酮- 4- 羧酸与乙醇反应得到L-四氢噻唑-2-硫酮-4- 羧酸乙酯。
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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