在乙醚溶液制得的聚苯乙烯次甲基锂与甲基丙烯酸甲酯反应不能分离出聚甲基丙烯酸甲酯及它的接枝共聚物。
Neither polymethylmethacrylate nor polymethylmethacrylate-grafted copolymer could be isolated by the reaction of polystyrene methylene lithium prepared in ether solution with methyl methacrylate.
然后,在无水THF中用氢化铝锂还原,得纯的手性2 ,4 二羟甲基四氢吡咯衍生物。
All of the 2,4 pyrrolindinediester derivatives were reduced with lithium aluminum hydride in anhydrous THF, and ten new chiral 2,4 Dihydroxylmethylpyrrolidine derivatives were found.
电池组装完成后,加热使甲基丙烯酸甲酯聚合,在电池中形成聚甲基丙烯酸甲酯与高氯酸锂-丙烯碳酸酯的凝胶电解质。
After assembling battery pack, the method heats up and polymerizes methyl methacrylate so as to form gel electrolyte of polymethylmethacrylate and lithium perchlorate - propylene carbonate.
通过锂试剂的方法,合成了三氟甲基苯基环已基酮化合物,反应产率在到60%。
Synthesis of phenylcyclohexane trifluoromethyl ketones by lithium reagent is studied and the yield of reaction is 60%.
通过锂试剂的方法,合成了三氟甲基苯基环已基酮化合物,反应产率在到60%。
Synthesis of phenylcyclohexane trifluoromethyl ketones by lithium reagent is studied and the yield of reaction is 60%.
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