以下为句子列表:
英文: Hydroxyquinol triacetate was prepared from p-benzoquinone by 1,4-addition reaction with acetic anhydride and then 6,7-dihydroxy coumarin was synthesized from it by hydrolyze and cyclization in concentrated sulfuric acid.Then 6,7-dimethoxy coumarin was syn
中文: 对苯醌与乙酸酐经1,4-加成生成1,2,4-苯三酚三乙酸酯,然后与苹果酸反应经水解、环合反应得6,7-二羟基香豆素,再经甲基化得到6,7-二甲氧基香豆素,总收率为74.4%,整个过程反应条件温和,操作方便,适合工业生产的要求,对产品结构进行了IR和1HNMR表征。
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英文: They added a small amount of the fluorescent dye coumarin to the emitter material tris (8-hydroxy-quinoline) aluminum.
中文: 他们在发光材料三(8–羟基口喹啉)化铝里,加入了少量的萤光染料香豆素。
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英文: A Primary Study on Coumarin Component in the Stems and Leaves of Rubus corchorifolius L.f.
中文: 山莓茎叶香豆素成分的初步研究
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英文: Variety trends of coumarin in Stellera chamaejasme L. in Songnen grassland of Heilongjiang,China
中文: 松嫩草地瑞香狼毒香豆素类化合物含量动态变化
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英文: EFFECT OF COUMARIN AND OLIGOSACCHARINS ON IN VITRO TUBERIZATION OF POTATO
中文: 香豆素和寡糖素对马铃薯试管结薯的影响
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