• 深入研究了红霉素反应。

    The oximation of erythromycin is studied.

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  • 探讨一种无吡啶盐酸羟胺测定肉桂醛可行性。

    A classical method to determine the content of cinnamaldehyde is called hydrochloride hydroxylamine-pyridine oximation.

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  • 并在基础总结半经验公式,用于设计和操作分析

    The semi-empirical correlations were proposed based on the experimental data, which could be used for operation analysis of the oxime tower.

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  • 报道了由苯酚经过乙酰重排反应合成扑热息痛一种方法

    This paper reports a new process of synthesizing paracetamol from phenol by acetylization, oximation and Beckmann rearrangement.

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  • 红霉素保护再经甲基保护得到克拉霉素收率达40 %以上。

    Clarithromycin was prepared from erythromycin a through oximation, protection, methylation and deprotection. The overall yield of clarithromycin was 40%.

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  • 工艺收率90%以上,产品乙醛含量大于35%,相对纯度高于95%。

    The synthetic ratio was over 90%, content of acetaldoxime was over 35% and relative purity of the product was over 95%.

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  • 以对三氟甲基苯胺为原料,经重氮、水解制得对三甲基苯甲醛收率35

    The starting reagent, p-trifluoromethylaniline, was subjected to diazotization, oximation, and hydrolyzationto synthesize p-trifluoromethyl benzaldehyde, with a total yield of 35.

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  • 乙酰乙酸叔丁原料,经过代酯解反应合成了头孢克

    Cefixime open side chain acid was prepared by oximation, etherification, chlorination, ester decomposition using t-butyl acetoacetate as starting material.

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  • 本文介绍2 -肟化丁醛合成丁二酮,并对影响因素进行了讨论

    In this paper the synthesis processes by 2 butanone oximation and gas phase oxidation of isobutyraldehyde were introduced. The influence factors in the process were discussed.

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  • 结构类似物阿维菌素B_1的交叉反应率51%,菌素肟化物的交叉反应率小于0.2%。

    The cross reactivities for avermectin B_1 was 51% and for milbemycin oxime was less than 0.2%.

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  • 对羟基苯乙酰胺为原料烷基水解、氧4反应合成丁苯羟酸,收率为46.5%。

    With pHydroxybenzeneactamide as the starting material, the Bufemaxac was prepared by means of four steps reaction of alkylation, hydrolyzing, esterification and Ooximation with total yield of 46.5%.

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  • HPO法生产己内酰胺应用广泛的己内酰胺合成工艺,该生产流程主要包括环己制备,环己酮重排三大工序

    HPO process which is composed of cyclohexanone preparation, hydroxylamine oximation and cyclohexanone-oxime rearrangement has been applied widely in Caprolactam Industry.

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  • 首先通过液相吸附实验考察了TS - 1几种吸附然后考察了TS - 1催的酮的氨肟化反应,最后对吸附实验和反应后的催分别进行TGA分析。

    Absorbed amounts of ketones on TS-1 were determined by the liquid-phase-adsorption experiment, and then the TS-1 samples after absorption were analyzed by TGA.

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  • 西他丁合成乙酰乙酸1-溴-5-氯戊烷为原料,活性亚甲基烃、成和水解3反应得7-氯-2-氧庚酸乙酯;

    The synthesis of Cilastatin sodium started from ethyl acetoacetate and 1-bromo-5-chloropentane, through 3 steps to produce ethyl 7-chloro-2-oxoheptanoate;

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  • 西他丁合成乙酰乙酸1-溴-5-氯戊烷为原料,活性亚甲基烃、成和水解3反应得7-氯-2-氧庚酸乙酯;

    The synthesis of Cilastatin sodium started from ethyl acetoacetate and 1-bromo-5-chloropentane, through 3 steps to produce ethyl 7-chloro-2-oxoheptanoate;

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