• 反应混合物可以重新用于后面的酰基化反应

    The reaction mixture can be reused for subsequent acylations.

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  • 通过傅克基化反应制备聚苯乙烯球。

    Carboxylic crosslinked polystyrene microsphere was prepared by F-C acylation reaction.

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  • 发明包 括反应:二经过傅克基化反应后再水解得1-羧二茂钌;

    The present invention comprises six reaction steps: the cyclopentadienyl ruthenium, after the Fuke acyl reaction, is hydrolyzed into 1-carboxyl cyclopentadienyl ruthenium;

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  • 本文利用浸渍法制备了一系列不同载体用于苯的羟基化反应

    A series of Ni-based catalysts with different supports were prepared by impregnation method and tested in the hydroxylation of benzene to phenol.

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  • 此外,探索通过或者自由引发,对甲苯合物饱和进行化反应

    Furthermore, benzylation of methyl-substituted benzene by activation of saturated hydrogen through the use of oxidation or free radical initiation has been developed.

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  • 文中对酰胺羰基化反应条件进行了优分离得到消旋N-乙酰亮氨酸产率为66.4%。

    The amidocarbonylation reaction conditions were optimized and 66.4% isolated yield of racemic N-acetylleucine were obtained.

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  • 应用纳米相中成功地促进多种合物和巴豆溴的丁烯基化反应,在时间内得到了高产率的高烯丙

    Indium, tin and bismuth nanoparticles successfully mediated crotylation of carbonyl compounds in water to afford the corresponding homoallylic alcohols with good to excellent yields in a short time.

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  • 实验盐酸三乙胺-三离子液体IL,催水杨酰胺(SA乙酰进行傅克基化反应合成5乙酰水杨酰胺。

    Friedel-Crafts acetylation of salicylamide(SA) with acetyl chloride to 5-acetylsalicylamide using triethylammonium chloroaluminate ionic liquid(IL) as both catalyst and solvent was investigated.

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  • 以过硫酸铵硝酸自由引发剂 ,以23二甲吡嗪苯乙酸为原料 ,首次采用自由基化反应合成5 2 ,3 二甲吡嗪。

    Dimethylpyrazine reacted with phenylacetic acid, silver nitrate and ammonium persulfate through a radical hydrocarbylation mechanism to yield 5 benzyl 2,3 dimethylpyrazine.

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  • 反应烧结法制备三元复合新型硬质合金,具有优良的物理力学性能

    New type cemented carbide of ternary complex boride base prepared by reaction boronizing sintering technique has excellent physical, chemical and mechanical properties.

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  • 通过使用乙烯吡啶聚合物的能令 人惊奇使形成醇醚副产物的开环反应最少

    Surprisingly, ring-opening reactions that form glycol or glycol ether by-products are minimized by using the vinylpyridine polymer-containing catalysts.

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  • 原子作为保护,代替末端炔发生碳-氢官能团反应

    Halogen atom could activate the triple bond and as the directing group, the triple bond occurs the electrophilic addition reaction.

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  • DMF-四乙TEAB)质子惰性介质中,马蔺子素连续电子还原生成相应氢阴离子,中间体半醌自由反应发生

    In DMF tetraethyl ammonium bromide(TEAB) media, the reduction of irisquinone was two successive single electron processes without the chemical reaction of the free radical semiquinone.

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  • 通过机理分析不同引发条件下自由加成反应的比较,认为过氧物引发自由加成反应制备六氟丁醇具有工业前景。

    According to the discussion of reaction conditions using different initiations, it was believed that peroxide-initiated free-radical addition reaction was a promising method by mechanism analysis.

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  • 有机合成法按糖苷化反应给体不同分为溴苷给体给体两种方法。生物转方法是利用生物体为转体系合成熊果苷。

    Organic synthesis can be classified into two ways based upon different donor of glycosyl groups in the glycosidation, namely glycosyl-bromo-glycoside donor and acyl donor.

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  • 1- 苯- 2-丙胺为原料,N- 甲基化拆分N-炔基化、成共4步反应合成盐酸司来吉兰收率为42。

    From 1-phenyl-2-propylamine, selegiline hydrochloride, an anti-Parksins drug, was synthesized via N-methylation, enantiomer separation, N-alkylation and salt formation with an overall yield of 42.2%.

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  • 本文用2-氯-5-氯吡啶基化N-氰乙亚胺乙酯反应最后基化得到吡虫清。

    In this thesis, 2-chloro-5-chloromethyl pyridine is ammoniated, which followed by the reaction with N-cyano ethyl ethylimidoate, finally is methylated to gain the objective product.

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  • 经过红外表征发现,反应得到了端酸酐超支聚酰胺超支聚酰亚胺;

    Through the condensation polymerization of TAPOB and dianhydride, hyperbranched polyamide acid (HBPAA) and hyperbranched polyimide (HBPI) were prepared.

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  • 磨耗不仅导致高分子断裂而且可能会发生链转移反应大分子自由的异构化反应。提出胶料磨耗机械力引发的具有链式反应特征的力反应结果

    The results show that the abrasion process is similar to its aging by heat and oxygen. The abrasion not only resulted in the fragmentation of macromolecule chain, but also would lead to ch…

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  • 磨耗不仅导致高分子断裂而且可能会发生链转移反应大分子自由的异构化反应。提出胶料磨耗机械力引发的具有链式反应特征的力反应结果

    The results show that the abrasion process is similar to its aging by heat and oxygen. The abrasion not only resulted in the fragmentation of macromolecule chain, but also would lead to ch…

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