• 通过成本比较,认为丙合适

    The propionyl chloride was found to be the appropriate acylating agent in terms of the cost.

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  • 一种有刺激性气味的有毒无色气体C2H2o主要用作酰化

    A pungent, toxic, colorless gas, C2H 2o, used chiefly as an acetylation agent.

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  • 提出氯酸化剂,分析乙酸乙酯为介质测定伯、实验条件,实现了对经典方法改进,简了操作程。

    The experimental condition of acetylating method for determining priminary alcohol and secondary alcohol catalyzed by perchloric acid in the medium of analytically pure ethylacetate is proposed.

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  • 研究了已二酸二水合反应合成己二二肼。乙酸己二二肼得到金属减活N

    Metal deactivator N, N'-Di-acetyladipic dihydrazine was prepared by reacting diethyl adipate with hydrazine hydrate, and then was treated with acetic anhydride.

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  • 考察HZ - 1沸石交换次数制备条件化剂用量甲苯苯甲酰化反应影响。

    The effects of the catalyst dosage and the preparation conditions of HZ-1 zeolite, for example, number of exchange times on the benzoylation of toluene were studied.

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  • 采用氢双丙酸为原料,甲醇-水溶液中,碱性条件下,加入适量抗氧化剂,经部分醇解脱酰化反应合成氢醌单丙酸酯。

    Hydroquinone monopropionate was synthesized by partially alcoholysized and deacylated of hydroquinone bipropionate in methanol-water solution and alkaline condition with appropriate antioxidant.

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  • 综述了高效化剂4-二甲氨基吡啶(DMAP)的合成方法应用前景

    This article summarizes the synthetic method of 4-Dimethylaminopyridine (DMAP) and its applying prospect.

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  • 精制羊毛酰化羊毛脂均可做为皮革加脂的原料组份。

    The refined lanolin is reacted with acetic anhydride to obtain acetylated lanolin.

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  • 考察酰化反应温度酰化反应时间、种类、水解反应时间、还原种类、甲酸用量因素各步反应收率的影响。

    Factors influencing the product yield are discussed, such as nitrating agents, reductive agents, reaction temperature, reaction time, have been investigated.

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  • 认识开发新颖治疗要求,本发明提供新颖组蛋白去乙酰化抑制

    In recognition of the need to develop novel therapeutic agents, the present invention provides novel histone deacetylase inhibitors.

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  • 本文综述丁酸植物提取物饲料添加作为蛋白去酶(HDAC)抑制模型动物畜禽上研究进展

    This review focused on the advances of the effect of feed additives, such as butyrate and plant extracts, on model animal and livestock as inhibitors of histone deacetylases (HDAC).

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  • 通过对利用发明方法制备的6-蔗糖去乙酰化可以制备蔗糖,强力甜味三氯半乳蔗糖。

    Chlorinated sucrose, the high intensity sweetener trichlorogalactosucrose can be prepared by chlorination and deacylation of 6-acyl sucrose prepared by the process of this invention.

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  • 研究水溶性膦络合催化剂1 -己烯反应。

    The use of the water-soluble Rh-phosphine complexes for catalytic hydroformylation of 1-hexene in two-phase system was studied.

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  • 酰化反应DMAP作催化剂,采用冰上倾倒反应使产物析出后处理方法收率82.8%;

    DMAP as catalyst, the postprocessing steps were simplified with the method of pouring the reaction solution into ice, the yield was 82.8%;

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  • 化剂无溶条件下实现了苯甲酸酐的酰化反应,部分产物NMRIR表征

    Acetylation between alcohol and benzoyl oxide was carried out using ZnBr_2 as a Lewis acid catalyst in solvent-free condition. Some structures were characterized by NMR and IR.

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  • 化剂无溶条件下实现了苯甲酸酐的酰化反应,部分产物NMRIR表征

    Acetylation between alcohol and benzoyl oxide was carried out using ZnBr_2 as a Lewis acid catalyst in solvent-free condition. Some structures were characterized by NMR and IR.

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