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- Keywords cedranediol boronic ester;asymmetric synthesis;crystal structure;steric hinderance effect; 雪松二醇硼酸酯;不对称合成;晶体结构;空间位阻效应;
- boronic esters 硼酸酯
- A salt or an ester of boric acid. 硼酸盐一种硼酸盐或硼酸酯
- Of, relating to, derived from, or containing boron. 硼的硼的、与硼有关的、来源于硼的或含硼的
- A natural or synthetic ester of glycerol and fatty acids. 甘油酯以甘油和脂肪酸天然存在的或合成的酯
- BDD electrode intermingled with boron. 硼掺杂金刚石薄膜电极
- Reacts with alcohols yielding esters. 与酒精反应,产生酯。
- The main constituents were alkanes and esters. 小叶三点金全草主要含有烷烃和酯类化合物。
- The method employs deriva-tization of the acids to their esters using boron trifluoride -methanol,seperated by 5%DEGS +1%H 3 PO 4 column. 样品采用三氟化硼-甲醇溶液酯化;用质量分数为5%25DEGS+质量分数为1%25H3PO4高效色谱柱分离。 结果:EPA、DHA的回收率分别为96.;2%25±3%25和95
- A salt or an ester of lactic acid. 乳酸盐或乳酸酯
- A trademark used for an abrasive of boron nitride granules. 氮化硼用于一种由氮化硼微粒组成的磨料的商标
- A salt or an ester of titanic acid. 钛酸盐钛酸的盐或酯
- A salt or ester of hypochlorous acid. 次碳酸盐一种次碳酸的盐或酯
- Ester asked for time to think all this over . 埃斯特拉要求给她时间好好想一想。
- Ester asked for time to think all this over. 埃斯特拉要求给她时间好好想一想。
- A salt or an ester of malic acid. 一苹果酸的盐或酯
- Especially indicated for glazes which contain lead and boron. 尤其适用于含铅、含硼的釉药。
- A salt or an ester of oxalic acid. 草酸盐草酸的盐或酯
- A salt or ester of arsenic acid. 砷酸盐,砷酸酯
- A salt or an ester of pantothenic acid. 泛酸盐,泛酸脂泛酸的盐或脂