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In addition, the nitration of phenol in other microemulsion systems was carried out.

此外,本课题还考察了在其它微乳体系中苯酚的选择性硝化反应。

3Effects of different kinds of catalysts with Keggin structure on nitration of toluene were studied.

3研究了不同种类Keggin型杂多酸对甲苯硝化反应选择性的影响。

A new method including the nitration and oxidation of synthesis of Nitro , benzodioxide acid was introduced.

报道了直接以黄樟油为原料,经硝化和氧化制备硝基胡椒基酸的新工艺。

Nitrification in chloraminated drinking water distribution system and its control were introduced.

介绍了氯胺消毒给水管网中的硝化作用及其控制方法。

The hydrolysis-nitration of nitrosamine products of the incomplete oxidation products of HBIW have been studied.

研究了亚硝解产物的水解硝化反应。

Synthesis of target compounds namely: to vanillic acid as the starting material with methanol under reflux conditions for 4 - hydroxy -3 - p-methyl, then ether, and nitration, reduction, cyclization reaction 6 - methoxy -7 - benzyloxy-quinazoline -4 - one, and then by the chloride in place of aniline, benzyloxy-off, such as etherification reaction of the target compounds; target compounds with the second and third occurrence of substitution reactions of amines by the TM1, that is, 4 - amino-benzene -6 - methoxy -7 - [2 - hydroxy -3 -(N, N-diethyl amino) oxy c] quinazoline; with ether occurred Ornidazole reaction of TM2, namely, 4 - amino-benzene -6 - methoxy -7 - [2 - hydroxy -3 -(2 - methyl -5 - nitroimidazole) C oxy] quinazoline.

本论文以嘌呤类似物喹唑啉为母核,分别在其4位和7位引入结构多样的取代苯氨基和柔性侧链,设计了一系列4-取代苯胺基-6-甲氧基-7-(2-羟基取代丙氧基)喹唑啉类化合物。目标化合物的合成即:以香草酸为起始原料,与甲醇回流条件下得到4-羟基-3-甲氧基苯甲酸甲酯,然后经过醚化、硝化、还原、环合反应得到6-甲氧基-7-苄氧基喹唑啉-4-酮,然后再经氯化、取代苯胺、脱苄氧基、醚化等反应得到目标化合物;目标化合物与二乙胺发生胺取代反应得到了TM1,即4-苯氨基-6-甲氧基-7-[2-羟基-3-丙氧基]喹唑啉;通过与奥硝唑发生醚化反应得到TM2,即4-苯氨基-6-甲氧基-7-[2-羟基-3-(2-甲基-5-硝基咪唑)丙氧基]喹唑啉。

A field study with greenhouse celery Apium graveolens L.

通过田间试验研究了含硝化抑制剂DMPP复合肥对日光温室芹菜生长和品质的影响。

In this dissertation, I will represent my studies on the nitration of Chalcone derivatives, reaction of epoxide ketone, and the aromatization of 3,5-disubstitued 2-isoxazolines with nitric oxide.

本文主要研究了:(1)NO与查尔酮及其衍生物的硝化反应,反应以较高的产率得到了a-硝基化合物;(2)NO对环氧酮的开环反应,反应生成了顺式羟基硝酸酯;(3)3,5-二取代的-2-异恶唑啉在NO作用下可以发生芳环化反应,生成了对应的2-异恶唑化合物。

Hydroxy-5, 10-dihydrophenophosphazine 10-oxide (1) reacted with SOCl2, and then with MeONa in MeOH to give a methyl phosphinate (2) which can be converted to a dinitro compound 3 (62%) by nitration and the resulting dinitro compound 3 can further be converted to 2, 8-diamino-10-methoxy-5, 10-dihydrophenophosphazine 10-oxide (4, 71%) by hydrogenation over Pd/C (w = 0.05). And the effect of amount of Pd/C (w = 0.05) on the reduction was also studied.

10-羟基-5,10-二氢磷杂吖嗪-10-氧化物(1)经醯氯化、甲基化得到10-甲氧基-5, 10-二氢磷杂吖嗪-10-氧化物(2),2经硝化得到10-甲氧基-2,8-二硝基-5,10-二氢磷杂吖嗪-10-氧化物(3,62%)。3在Pd/C(w = 0.05)存在下,用氢气还原为2,8二氨基-10-甲氧基-5,10-二氢磷杂吖嗪-10-氧化物(4,71%),考察了Pd/C(w = 0.05)用量对氢化还原反应的影响。

Dissimilatory nitrate reduction in fungi includes denitrification and ammonia fermentation, which occurs under the conditions of limited aeration.

真菌异化硝酸盐还原途径的发现打破了反硝化仅存在于原核细胞这一传统观念。

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Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。

However, to get a true quote, you will need to provide detailed personal and financial information.

然而,要让一个真正的引用,你需要提供详细的个人和财务信息。