We make progress in the synthesis of diethyl-PMEA, and replace t-BuONa for NaH, which makes the reaction's yield and safety arise greatly and improve the yield from 29% to 39%.

M-Anisidine was synthesized from m-aminophenol by acetylation, methylation and alkali hydrolysis reaction in yield of 90.7%, 82.8% and 88.2%, respectively.

以间氨基苯酚为原料，经乙酰化、甲基化和碱水解合成了间氨基茴香醚，3步反应的收率分别为90.7%，82.8%和88.2%。

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In this study, phosphoramide mustard was coupled to2-phenyl-4-quinolone by a facile phosphorylation reaction to yield a novel quinoline-4-phosphoramidate derivative.

以2-苯基-4-喹啉酮为原料，通过磷酰化反应将磷酰氮芥引入到2-苯基-4-喹啉酮中，合成了一种新型的喹啉-4-氨基磷酸酯衍生物。

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Correlative Study on the Physiological Reaction and Yield Performance of Wheat Varieties Stressed by Water Deficiency

水分胁迫下不同小麦品种抗性反应与产量表现的相关研究

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The reaction total yield exceeds 70%.

反应总收率达到70%以上。

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Effects of Gibberellic Acid on the Physiological Reaction and Yield Characteristics of Wheat

赤霉酸对小麦生理效应和产量性状的影响

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Sodium N-lauroyl sarcosinate was synthesized from lauric acid and sodium sarcosine. The effects of concentration of ( sodium) sarcosine, pH value, the volume ratio of aqueous sodium sarcosine and organic solvent, and temperature on the reaction yield were investigated.

以月桂酸和肌氨酸钠为原料合成了N-月桂酰肌氨酸钠，讨论了肌氨酸钠浓度、溶液pH值、溶剂、反应温度对反应结果的影响。

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When thermal treatment time stretched from 0.5 h to 4.0 h, the coking value increased from 61.84 wt.% to 76.20 wt.%. ( 2) With the increase of additive amount of inorganic particles, both reaction yield and coking value of modified pitch increased.

当热处理时间从0.5h延长到4.0h，改性煤沥青的结焦值从61.84wt.%增大到76.20wt.%。（2）随着无机粒子添加量的增加，改性煤沥青的产率提高，结焦值增大。

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Although these methods can get a better reaction yield, but the reaction itself, often because of the use of expensive catalysts or reaction conditions is stringent or more complex post-processing and other reasons, limit their further application in organic synthesis.

虽然这些反应方法都能得到较好的反应收率，但在反应本身常常因为使用了昂贵的催化剂或是反应条件较为苛刻或是后处理较为繁杂等原因限制了它们在有机合成中的进一步应用。

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Dimercapto-1, 3, 4-thiadiazole was prepared with triethylamine as a catalyst. Compared with the traditional synthesis techniques, triethylamine as a catalyst can raise the reaction yield from 82.50 to 90.01%.

采用三乙胺作为催化剂的方法，合成了DMTD（2,5-二巯基-1,3,4-噻二唑），将产率从传统工艺的82.50%提高至90.01%，并探讨了三乙胺的催化机理。

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The products purity was the highest than other methods, no impurity almost, and the odor was very pure. The selectivity was 100%, and the reaction yield more than 87%.

与其它路线比较，产品纯度特别高、几乎无杂峰，香气纯正，反应选择性为100%，一次性反应收率87%以上。

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At the same time, the reaction yield is high, and also proved that the method has universal applicability. 1,3-dipolar cycloaddition is the best way to build the isoxazole ring.

同时，反应的产率很高，也证明了该方法具有很好的普遍适用性。1,3-偶极环加成是构建异嗯唑环的最好方法。

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The result shows: The higher reactivity of dye with fabric, the larger the absorption affinity of dye on fabric, and the faster the dyeing speed the higher reaction yield.

结果发现：SN型活性染料与纤维反应活泼性愈高，染料对纤维亲和力愈大，则其染色速度愈快，反应率愈高。

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Except temperature and catalyst, the main influence factors to reaction yield are the proportion of the materials, the volume ratio of the mixed solvent and reaction time.

实验表明：温度和催化剂是影响反应收率和产品质量的的主要因素，还有原料的配比、加料顺序、混合溶剂的体积比、反应时间等也是重要影响因素。

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Compared with traditional synthetic technology, peri-od was shorter and the total reaction yield was raised to 88.3% from 79.9%.

此工艺与国内目前采用的传统合成工艺相比，生产周期短，反应总收率从79.9%提高到88.3%。

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Also, the crystal craft was optimized to improve the product quality and overall reaction yield, and got high qualified and pure cellulose tribenzoate.

同时优化结晶工艺，提高了产品质量及总反应收率，得到了高质量的纤维素三苯甲酸酯纯品。

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Experimental results showed that this process has the advantages of technology and equipment, the total reaction yield 26%, and the purity 98% after refining.

试验结果表明本路线具有工艺过程简单、设备投资省的特点，反应总收率可达26%，精制后产品纯度在98%以上。

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By a single factor test, effects of ratio between reactants, microwave power, irradiation time et al on reaction yield were examined.

研究了各反应物的摩尔比、微波辐射功率、辐射时间等因素对β-萘丁醚收率的影响。

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Reaction yield, as 80%, is 21% higher than the step by step way, which is 59%.

收率为80%，与逐步法相比（69%×85%）收率提高21%。

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According to the research results, the reaction yield increased to 65%, which lay the foundation for future industrialization.

依据研究结果，反应收率提高到了65%，为进一步的工业化生产打下了基础。

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Objective To investigate the factors of the reaction yield.

目的考察影响反应收率的因素。

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