reaction yield

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%。

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%。

Effects of Spraying Fertilizer and Chemicals on Physiological Reaction and Yield Formation of Hybrid Rice

喷施肥料与化学药剂对杂交稻的生理效应及产量形成的影响

At the end capping stage, the reaction temperature is 120 ℃ at first and then 150 ℃, and the reaction time is 5 h. Under the optimum reaction conditions the yield of the product can be up to 86.7%.

在封端反应阶段，反应初期的适宜温度为120℃、后期以150℃为佳，适宜的反应时间为5h，在该条件下收率为86.7%。

In the Triton X-100/ n-C5H11OH/ H2O systems, the reaction yield is increased with the increase of H2O content or with the decrease of Triton X-100 content.

Triton X-100／n-C5H（11）OH／H2O体系中，Triton X-100含量的增加导致反应产率降低。H2O含量的增加有利于提高反应产率。

The effects on the yield by reaction agent relative ratio, reaction temperature, reaction time hadbeen also discussed.

同时详细讨论了反应物配比、反应温度及时间等因素对收率的影响。

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。

It was prepared from 4-aminobenzaldehyde and 3-( 4-formylphenylazo)-4,5-dihydroxynaphthalene-2,7-disulphonic acid by diazotization, coupling reaction, yield was 52.6%.

以自制的对甲酰基苯偶氮变色酸和4氨基安替吡啉为原料，经重氮化、偶合反应制备上述目标化合物，产率为52.6%。

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。

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

The results show that the simulation of resonance reaction yield curve should be effective for improving the depth resolution and simplifying the analysis method of boron depth profiling and useful for the research of boron doped amorphous films.

结果表明反应产额曲线的模拟对改善共振反应分析的深度分辨和简化分析方法是有效的，对掺硼非晶硅薄膜中硼的深度分布研究是有益的。

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。

Objective To investigate the factors of the reaction yield.

目的考察影响反应收率的因素。

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。

Dimer acids was synthesized from soybean oil fatty acid by granular activated bleaching earth. The influence factors on the yield of the reaction, such as the amount of catalyst, reaction temperature and reaction time were investigated.

以粒状活性白土为催化剂，对大豆油脂肪酸为原料催化合成二聚酸进行了研究，考察了催化剂、反应温度、时间等因素对反应的影响。

Racemic 2-methyl-1-phenylpropylamine was obtained by Friedel-Crafts reaction of benzene and isobutyryl chloride with the yield of 75.0%, then followed by Leuckart reaction in 85.0% yield.

本文以苯、异丁酰氯为原料通过傅克酰基化反应得到2-甲基-1-苯基丙酮，收率75.0%。

And 1H NMR, 13C NMR and ESI-MS spectra characterized its structure. The reaction yield was compared between the two kinds of oxidant.

采用1H NMR、13c NMR及ESI-MS对其结构进行表征，并对两种氧化剂的反应产率进行比较。

Bis ( diphenyl methyl) ether was synthesized under microwave irradiation by dry reaction at ambient pressure. The rate of reaction was dramatically accelerated and high yield was obtained, comparing with that of methods using organic solvent as medium or using dry reaction by conventional heating.

在常压下用微波辐射固相反应的方法合成了二苯基甲基醚，与用有机溶剂为介质及传统的热固相反应方法相比，其反应速率快，产率高。

However, the reaction yield is still low, and it is not beneficial to expand the scope of the substrates. Therefore, we need to find better conditions to improve the yield, and the related work is still in progress.

然而反应产率偏低，不利于底物拓展，需要寻找更好的条件来提高产率，相关研究仍在进行中。

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。

Simulation of reaction yield curve and boron depth profiling in amorphous silicon films

核反应产额曲线的模拟与非晶硅薄膜中硼的深度分布研究

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。

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。

A simulation method of resonance reaction yield curve is reported.

报道了一种模拟共振反应产额曲线的方法。

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。

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。

In the sacrificial anode method, with ionic liquids as electrolyte, Cu as the anode and Al as cathode, we investigate reduction potential and carboxylation reaction yield of different aromatic compounds, and analyze its reasons from the angle of the electronic structure.

在牺牲阳极法中以离子液体作为电解液，以Cu作为阴极、A1作为阳极，考察了不同芳香化合物的还原电势大小、羧化反应难易，并从电子结构的角度分析其原因。

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。

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。

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。