中间体

Gemini surfactant, sodium oleoylamidodiphenyl ether disulfonate was synthesized from p-nitrodiphenylether,oleoyl choride and chlorosulphonic acid through nitro-group reduction,acylation and sulphonation.

以对硝基二苯醚、油酸酰氯、氯磺酸为主要原料，通过硝基还原反应、胺基酰化反应、磺化反应，合成了双子表面活性剂油酸酰胺基二苯醚双磺酸钠；并用IR，1HNMR，MS对产品及中间体结构进行了表征。

It was relatively rational that rhubarb, red ochre, chinese angelica , cimicifuga rhizome and liquorice were selected to control production intermediate and preparation quality.conclusion the method is of advantage to traditional chinese complex prescription analysis and quality control in harmony with modern science and technology.

结果 方中诸药分类符合中医制方理论；选择大黄、当归、麻仁、熟地和升麻为生产中间体和产品质量控制主要指标较合理。结论该方法对中药复方的方解和质量控制指标选择提供现代理论技术支持有一定的意义。

It was relatively rational that rhubarb, red ochre, Chinese angelica , cimicifuga rhizome and liquorice were selected to control production intermediate and preparation quality.

结果 方中诸药分类符合中医制方理论；选择大黄、当归、麻仁、熟地和升麻为生产中间体和产品质量控制主要指标较合理。

The company has import and export autonomy, the company produced cinnamic series products: cinnamic acid, cinnamaldehyde, cinnamyl alcohol, vitamin E, vitamin B1 and the company operated chemical biology, pharmaceutical intermediates and other products sold throughout the country and exported to Europe, America and Southeast Asia more than 20 countries and regions, well received by customers.

公司拥有进出口自主权，公司生产的肉桂系列产品：肉桂酸、肉桂醛、肉桂醇、维生素E、维生素B1及公司经营的生物化工、医药中间体等产品畅销全国各地并出口到欧美及东南亚20多个国家和地区，深受客户好评。

Factory production workshop area of 12,000 square meters area: 5000 square meters, with plant extracts two production lines, cinnamic acid series production lines, pharmaceutical intermediates production line 1, and product analysis supporting system such as HPLC.

公司厂房面积 12000平方米生产车间面积：5000平方米，拥有植物提取物生产线 2条，肉桂酸系列生产线，医药中间体生产线1 条，及与生产产品配套的检测分析系统 HPLC 等。

Cinnamaldehyde, a member of α,β-unsaturated aldehydes, and its semi- hydrogenated products such as cinnamyl alcohol and hydrocinnamaldehyde are important fine chemicals and intermediates especially in perfume industry and medicine manufacture.

肉桂醛是α，β-不饱和醛分子中的一种，肉桂醛分子中C=C键及C=O键加氢生成半加氢产物加氢肉桂醛和肉桂醇更是医药、香料等的重要原料及中间体。

Additionally, the synthesisof the key intermediates, cinnamyl aryl ethers was made an investigation andstudy. This improved synthetic method for cinnamyl aryl ethers may be alsoapplied to many benzofuranoid neolignans precursors.

此外，对关键中间体桂皮基芳香醚的合成进行了较为深入的研究，改良的成醚法可适用于许多苯骈呋喃类新木脂素前体的合成。

The acetic aldehyde is produced upon oxidation with alcohol as raw material. It is an intermediate product for producing acetic acid and crotonaldehyde, and also basic chemical and important intermediate for chemical products with vast use.

乙醛是以酒精为原料氧化生成，它是生产醋酸和巴豆醛的中间产品，又是用途极广的基础化工原料和重要的化工产品中间体。

Firstly, 3-ethylthiobutanal was prepared from crotonaldehyde reacting with ethanehiol in triethylamine with high yield. Secondly, methyl acetoacetate was converted to 6-ethylthiohept-3-en-2-one by three steps via hydrolysis, condensation with 3-ethyltio-butanal and dehydration, then 6-ethylthiohept-3-en-2-one was cycloco ndensed with dimethyl malonate by Michael addition and Claisen condensation, followed by saponification and decarboxylation to give the intermediate of 5-(2-ethylthiopropyl)-cyclohexane-1,3-dione.

首先，以巴豆醛与乙硫醇为原料，在三乙胺的催化作用下高收率制得3-乙硫基丁醛；然后从乙酰乙酸甲酯出发，通过碱水解、与3-乙硫基丁醛缩合、脱水三步反应合成6-乙硫基-3-烯-2-庚酮，接着6-乙硫基-3-烯-2-庚酮与丙二酸二甲酯通过Michael加成和Claisen缩合成环，再通过皂化和脱羧反应生成中间体5-[2-丙基]-1，3-环己二酮；再与丙酸酐反应丙酰化，最后与0-3-氯-2-丙烯基羟胺肟化，得到目标化合物烯草酮。

The article proposed a method of the gas chromatographic determination for methyl cyanoacetate and intermidiates.

提出了用 6 。5 %吐温+ 5 。5 %邻苯二甲酸二壬酯涂于 10 2白色硅烷化担体上的不锈钢色谱柱，对氰乙酸甲酯合成的中间体和产品进行定量分析，取得较满意的效果。

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％。