用氯醇法生产的环氧丙烷中所合杂质除有乙醛、丙醛外，还有烃类、环氧化物、卤代烷、丙酮、醇类等。
Chlorohydrin production of propylene oxide with the impurities except for acetaldehyde, propionaldehyde and hydrocarbon, epoxides, halogenated alkanes, acetone, alcohols, such as.
研究了胆甾醇酯类和胆甾醇卤代物的电子轰击电离（EI）、场解吸电离（FD）、化学电离（CI）的质谱。
Mass spectra (MS) of cholesterol esters and halides were obtained by means of Electron Impact (EI), Field Desorption (FD) and Chemical Ionization (CI).
在有机化学中，将苄卤和苄醇氧化成芳醛或芳酮是一类非常重要的反应。
In organic chemistry, the oxidation of benzyl halides and benzyl alcohols to aromatic aldehydes and aromatic ketones is an important reaction and of great significance both in theory and in practice.
通过卤过氧化物酶生物转化与化学步骤结合将茚定量转化为（1S，2R）-茚氧化物和（1S，2R）-二氢茚二醇的方法。
Quantitative conversion of indene to (1S, 2R) indene oxide and (1S, 2R)-indanpiol by combination of haloperoxidase bioconversion and chemical steps.
本研究针对无卤阻燃聚乙烯醇的高效化研究相关内容开展工作。
In this paper, we have used halogen-free flame retardants for PVA and studied theirs highly flame-retardant efficiency.
结果表明，经氯化汞活化的金属钐对酮类化合物与烯丙基或苄基卤代物的反应很有效，可高产率地生成叔醇。
Samarium metal (activated by HgCl2) is an effective reagent for allylation or benzylation of ketones. The corresponding tertiary alcs. are obtained in satisfactory yields.
结果表明，经氯化汞活化的金属钐对酮类化合物与烯丙基或苄基卤代物的反应很有效，可高产率地生成叔醇。
Samarium metal (activated by HgCl2) is an effective reagent for allylation or benzylation of ketones. The corresponding tertiary alcs. are obtained in satisfactory yields.
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