... dibutyl methylene diphosphonic acid 亚甲基二丁基双膦酸... active methylene 活性亚甲基 diphenyl methylene 二苯亚甲基 ...
基于12个网页-相关网页
active methylene group 活性亚甲基
active methylene compound 活泼亚甲基化合物
active methylene reactive polymer 高分子活性亚甲基化合物
active methylene reaction 活泼亚甲基反应
active methylene compounds 活波亚甲基化合物
fluorine-containing active methylene compounds 含氟活泼亚甲基类化合物
methylene blue active substance 亚甲蓝活性物质 ; 亚甲基蓝活性物质
Methylene-Blue-Active Substances 亚甲基蓝色有效物质
methylene blue active material 亚甲蓝活性物质
One of the hydrogen atoms of the active methylene group is replaced with a cyclooxy group.
活性 亚甲基上的一个 氢原子 是被环氧基所取代的。
An Efficient NH2SO3H-catalyzed direct alkylation of active methylene compounds with benzylic and allylic alcohols has been reported.
报道了氨磺酸催化的活泼亚甲基化合物和醇的直接烷基化反应新方法。
The new method in the determination of negative ion surface-active agent is introduced, comparing with methylene blue method, it have merits of simple operation step and little dosage.
介绍了水中阴离子表面活性剂测定新方法，该法与亚甲蓝法比较，具有操作步骤简单，萃取剂用量少的优点。
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