类化

In reductive amination, how to avoid to turn ketones into alcohols is one of difficulties in industrialized manufacturing.

在还原胺化类催化加氢反应中，如何避免酮被还原成醇，也是工业化生产中面临的难题之一。

As a comparison,the amination of phenols turn out to be unsuccessful under various conditions tested.

同时我们也开展对苯酚类化合物氨基化的反应研究，使用多种策略，均未成功。

The conventional synthesis method of amine and the amination with microwave method and ionic liquid were summarized.

胺类化合物是医药、农药、染料等许多化学品的重要原料和中间体，对合成胺的传统方法以及微波法和离子液体中的胺化进行了综述。

This paper selects"Preparation and characterization of palladium-lanthanum supported catalyst and its use in the amination of 2, 6-diisopropylphenol"as the research subject of thesis for Doctor's Degree, and has theoretical importance and practical value.

因此，本论文选择了"钯-镧负载型催化剂的制备、表征及其在酚类胺化反应中的应用"这一课题，具有重要的理论意义和实用价值。

Activities can cause a very large release of DIN by virtue of excretion, burrowing, bioturbation and sediment resuspension. Developed cave in sediment and continual turnover of sediment by crab can improve an organic matter remineralization and ammonification, consequently reworking the DIN vertical profile in sediment.

蟹类活动造成的洞穴结构及对沉积物的翻动混合能增加沉积物中的氧气含量，促进沉积物中有机氮的矿化和NH(上标+下标 4)的释放，造成无机氮在沉积物中的剖面分布特征发生较大变化。

E. 3-allyloxyisothiazole and N-allylisothiazolone, were synthesized with 3-mercaptopropionate as the starting material through ammonolysis, cyclization and allylation reactions.

以3-巯基丙酸甲酯为原料，经氨解、关环、烯丙基化合成了2种含有不饱和侧链的异噻唑类化合物，分别为3-烯丙氧基异噻唑和N-烯丙基异噻唑啉酮。

When the temperature was 220℃and the concentration of water was 30%,77%N-ethylated aniline would be obtained.

特别当以乙醇为烷基化试剂时，各烷基胺类化合物在180℃的总产率均在95%以上。

Thus, the synthesis of anisole by O-methylation of phenol with DMC had been extensively investigated using phase transfer catalysts, organic alkaline catalysts or zeolites catalysts.

相转移催化剂，有机碱类催化剂以及分子筛催化剂是DMC甲基化苯酚合成苯甲醚这一反应的高效催化剂，研究的比较广泛和深入。

Based on the possible degradation products, Microbial degradation pathways of metsulfuron-methyl is concluded as follows: after the cleavage of the sulfonylurea bridge, 2-amino-4-methoxy-6-methyl-triazine is demethylated and the annularity reaction of sulphanilamide occurs.

甲磺隆主要降解途径首先是脲桥的断裂，然后6-甲氧基-4-甲基-2-氨基-三氮嗪进一步脱甲基，而磺酰胺类物质将进一步脱氨基环化。

This shows that the usage of the drugs used in the treatment of Rheumatoid Arthritis is a system with antirheumatic、tonic、drug for invigorating blood circulation and eliminating stasis、drugs for relieving exterior syndrome being the center. This embodied in all the drugs used in Rheumatoid Arthritis, and there is great law in it.

说明类风湿性关节炎治疗中，药物的配伍使用是以补益药、解表药、祛风湿药、活血化瘀药四类药物为核心展开临证处方体系的，这一现象在类风湿性关节炎的治疗中普遍存在，且有着很强的规律性。

What would he tell Judith and the children?

他将怎样告诉朱迪丝和孩子们呢？

I this is at that time, the opinion with peacockish true girl is full of in a heart.

这就是当时的我，一个心中布满虚荣的女孩子真实的想法。