反应率

It involved the converstion of vanillin into hydrazine (4) and the metalic reduction of hydrazine 4 into the intermediate vanillic amine.

以价廉易得的香草醛为起始原料，经过3步反应，高产率合成了酚羟基由对甲苯磺酰基保护的香草胺类化合物5。

The results indicated that at the inhibitor dosage of 0.4%, mole ratio of methacrylic acid to MPEG of 1.5:1 and reaction temperature of 120 ℃, the yield of MPEGMA could reach 92.3%.

结果表明：阻聚剂质量分数为0.4%、酸醇摩尔比为1.5：1、反应温度为120℃时，酯化率可达到92.3%。

In this thesis, 1, 5-diaryl-3-pyrazilidinones, 1, 5-diaryl-3-hydroxypyrazoles and 3-(2, 3, 4, 6-tetraacetyl-β-D-glucopyranos-1-yl)-1, 5-diaryl-1H-pyrazoles are designed and synthesized.1, 5-diaryl-3-pyrzolidinones were obtained by condensation of 3-arylpropenates and phenylhydrazine or fluorophenylhydrazine under the catalysis of sodium methylate and the yields were about 55-80%.

在本文中，设计合成了1，5-二芳基-3-吡唑烷酮化合物、1，5-二芳基-3-吡唑烷酮化合物和3-(2，3，4，6-四乙酰基-β-D-吡喃葡萄糖-1-基)-1，5-二芳基吡唑化合物。以3-芳基-2-丙烯酸酯为原料，与芳基肼在醇钠的催化作用下，反应可以生成1，5-二芳基-3-吡唑烷酮，产率在55%以上。

The effects of grafting conditions such as temperature,reaction time ,Mohr's salt concentration,and total concentration of monomer on grafting yield were studied.

讨论了辐照剂量、储藏时间、反应温度、Mohr's盐浓度及单体浓度等因素对接枝率的影响（所有的实验，辐照及接枝聚合等都是在有氧的条件下进行的）。

In this paper,the solid solid state reaction of a few bis sulfides with copper acetate monohydrate is studied.

本文报道了醋酸铜与一些对称二元硫醚酸在室温下的固－固相配位反应，采用元素分析、XRD、IR、ESR、MS、磁化率、TG－DTA等手段研究了室温下固相合成配合物的组成和性质

There was significant difference in fever rate between experiment group with Shanghai MMR vaccine and control groups with mump vaccine and rubella vaccine.

与对照疫苗比较，仅沪MMR疫苗发热率高于腮腺炎疫苗及风疹疫苗，差异有统计学意义，其他各反应差异均无统计学意义。

In the experiment group, 11.76% of the children had fever,3.64% had signs of rash, and local side effect rate and other side effect rate was 0.44%, 0.33% respectively. There was significant difference in fever rate between experiment group with Shanghai MMR vaccine and control groups with mump vaccine and rubella vaccine.

与对照疫苗比较，仅沪MMR疫苗发热率高于腮腺炎疫苗及风疹疫苗，差异有统计学意义，其他各反应差异均无统计学意义。

It was found that the nitration reaction has a high ortho-selectivity, and a high conversion could be achieved.

结果发现在此微乳体系中，苯酚的硝化具有明显的邻位选择性，而苯酚氧化等副反应明显减少，实现了高产率。

The nitric oxide released process of nitrosyl metalloporphyrins in vitro was detected with diazotization assay at room temperature, the four nitrosyl metalloporphyrinsbCo-NO、bFe-NO、a_(Co-NO、a_were good nitric oxide donors, the nitric oxide released efficiency is attained about seventy percent.

在室温下采用重氮化反应研究了这些金属卟啉-NO 配合物在水溶液中释放NO的过程，其中四种金属卟啉(bCo-NO、bFe-NO、aCo-NO、aFe-NO)有较好的释放效果，释放率达到近70%。

The 1,5-Bis(4-aminophenylazo) anthraquinone, 1,5-bis(4-hydroxyphenyl azo) anthraquinone and 1,5-bis(3-methyl-4-hydroxyphe nylazo) anthraquinone were synthesized by diazotizing 1,5-biaminoanthraquinone with nitrosyl sulfuric acid and coupling with aniline, phenol and o-cresol.

合成以1，5-二氨基蒽醌为原料，经亚硝酰硫酸重氮化，分别和苯胺、苯酚及邻甲酚偶合，得到双（4-氨基苯）－1，5-二偶氮蒽醌，双（4-羟基苯）－1，5-二偶氮蒽醌和双（3-甲基－4-羟基苯）－1，5-二偶氮蒽醌，反应产率达47%~62%。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！