硝基苯胺

Using o-nitrotoluene as an oxidant,the improved preparation of 7-chloroquinldine was studied by classical Skraup reaction of m-chloroaniline and crotonaldehyde.

研究了以邻硝基甲苯为氧化剂，间氯苯胺和巴豆醛通过经典的Skraup反应制备7-氯喹哪啶的改进方法。

Using o-nitrotoluene as an oxidant, the improved preparation of 7-chloroquinldine was studied by classical Skraup reaction of m-chloroaniline and crotonaldehyde.

研究了以邻硝基甲苯为氧化剂，间氯苯胺和巴豆醛通过经典的Skraup反应制备7-氯喹哪啶的改进方法。7-氯喹哪啶的收率为46.7%，质量分数99.2%；副产物为二氯喹哪啶，收率13.4%。

Xinquan HuTwo new chiral backbones R-- and S--2-amino-2"-hydroxy-4,4",6,6"-tetra methyl-1,1"-biphenyl were synthesized via nitration, diazotation/iodination, Ulhnann coupling, selective reduction, diazotation/hydrolysis, hydrogenation and resolution from 2,4-dimethyl-aniline in seven steps.

以2，4-二甲基苯胺为起始原料，经过硝化反应、重氮化碘代反应、Ullmann缩合反应、选择性双硝基单还原反应、重氮化水解反应、催化氢化反应和拆分，首次合成了--2-氨基-2'-羟基-4，4'，6，6'-四甲基-1，1'-联苯和--2-氨基-2'-羟基-4，4'，6，6'-四甲基-1，1'-联苯两个对映体。

In this dissertation, electrophilic reactions of Nitrosonium with imines, aza-Diels-Alder reactions of N-arylimines with a variety of electron rich olefinic compounds induced by NO~+, and photoreactions of N-nitrosodiphenylamine with aromatic amines were studied.

本文研究了：(1)NO~+与亚胺双健发生的亲电反应；(2)NO~+引发的芳香亚胺和富电子碳碳双键作为亲二烯体的氮杂Diels-Alder反应，高选择性地得到了一系列四氢喹啉的衍生物；(3)N—亚硝基二苯胺与芳香胺发生光化学反应得到了一系列偶氮苯类化合物。

Experimental results showed that the hydrogenation degree can be enhanced significantly by the addition of triphenylphosphine. When the molar ratio of TPP, TPPTS and Ru is 2:5:1, 89% hydrogenation degree can be achieved after 12 h under reaction conditions of 5.0 MPa and 150~C.

考察了溶剂种类、水溶液的pH值、添加助剂三乙胺、水／有机两相体积、底物浓度等对对-氯硝基苯转化率和生成对-氯苯胺选择性的影响，并在90℃、4.0MPa、反应时间为6h的条件下，进行了催化剂的循环实验。

In this article,a non-carcinogenic dye intermediate 4-aminodianiline-2-sulfonic acid is synthesized from 4-nitro-1-chlorobenzen through sulfonation,condensation and reduction.

针对联苯胺作为合成染料的重要中间体已被确认为致癌物的情况，以对硝基氯苯为原料，经磺化、缩合、还原，合成了一种无致癌性并取代联苯胺的双胺化合物染料中间体4-氨基二苯胺-2-磺酸，利用红外光谱、差热和氢谱核磁对其性质进行了表征。

Aniline and nitro-benzene in air and water can be identified by nitro and phosphor detector with large diameter capillary in quantitative analysis method.

采用大口径毛细管色谱柱和氮磷检测器建立了水及空气中苯胺及硝基苯的定量分析方法，线性范围0 ~ 80μg /L，检测下限1μg /L，重现性好，结果令人满意。

The pchloroaniline was prepared by catalytic reduction of pchloronitrobenzene with hydrazine in the presence of an iron oxide hydroxide catalyst.

在氢氧化氧铁催化剂存在下水合肼还原对氯硝基苯制备对氯苯胺，结果表明，氢氧化氧铁作为催化剂具有很好的催化活性、选择性和重复使用性。

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％。