乙腈

Methods 4-Methylacetophenone was used as starting material to give 2-(4-methylphenyl) propionitrile via reduction, chlorination and cyanation. 2-(4-Bromomethylpheny1) propionic acid obtained by hydrolysis and bromination of compound Ⅲ could further provided loxoprofen sodium through four steps.

以4-甲基苯乙酮为原料，经还原、氯化、氰化得到2-（4-甲基）苯基丙腈，然后经水解、溴化得到关键中间体2-（4-溴甲基）苯基丙酸，该中间体再经过4步反应可制得洛索洛芬钠。

A micro-monolithic column was prepared by in-situ free radical polymerization of stearyl methacrylate with ethylene glycol dimethacrylate in the presence of the initiator AIBN and a mixture of porogens including iso-amyl alcohol and 1,4-butanediol.

以甲基丙烯酸碳酰十八酯为单体，乙叉二甲基丙烯酸酯为交联剂，异戊醇和1，4-丁二醇为二元致孔剂，偶氮二异丁腈为引发剂，原位制备了具有强疏水性的SMA整体微柱，并利用此整体微柱在普通高效液相色谱仪上测定滴眼液中氧氟沙星的含量。

The polymer particles were prepared by copolymerization of phthalic aldehyde, allyl mercaptan and ethylene glycol dimethacrylate after heating. The fluorescence intensity of the polymer particles was very weak.

利用邻苯二甲醛与烯丙基硫醇、乙二醇二甲基丙烯酸酯在偶氮二异丁腈引发下热聚合制得了一种新型聚合物颗粒。

The company mainly produces cinnamaldehyde, cinnamic acid, cinnamic alcohol, cinnamic nitriles,-bromo-cinnamic aldehyde, amyl cinnamic aldehyde, acetic acid Gui ester, cinnamic acid acetate, L-carnitine, coumarin , vitamin B1 and so on, one of cinnamon products only amounted to more than 100 kinds of quality and technical content are up to domestic advanced level, is expected to reach an annual output value of 10 billion yuan.

公司主要生产肉桂醛、肉桂酸、肉桂醇、肉桂腈、α-溴代肉桂醛、戊基肉桂醛、乙酸桂酯、肉桂酸乙脂、左旋肉碱、香豆素、维生素B1等，其中仅肉桂系列产品就达100多种，其质量及技术含量均达到国内先进水平，预计年产值可达10亿元人民币。

The company mainly produces benzaldehyde, cinnamic aldehyde, cinnamic acid, cinnamic alcohol, cinnamic nitriles,-bromo-cinnamic aldehyde, amyl cinnamic aldehyde, acetic acid Gui ester, cinnamic acid acetate, L-carnitine, coumarin, vitamin B1, etc., of which only cinnamon series reached more than 100 kinds of products, its quality and technical content are up to domestic advanced level, is expected to reach an annual output value of 10 billion yuan.

公司主要生产苯甲醛、肉桂醛、肉桂酸、肉桂醇、肉桂腈、α-溴代肉桂醛、戊基肉桂醛、乙酸桂酯、肉桂酸乙脂、左旋肉碱、香豆素、维生素B1等，其中仅肉桂系列产品就达100多种，其质量及技术含量均达到国内先进水平，预计年产值可达10亿元人民币。

Company Profile Xiamen Fusite Rubber Co., Ltd., is a professional production of various kinds of rubber products and rubber metal combination of complementary services firms, mainly producing and processing rubber, silicone, nitrile rubber, ethylene-propylene rubber, SBR, natural rubber, fluoroelastomers such as temperature, oil, water, wear, sealing, shock absorption, anti-media, such as rubber.

厦门富士特橡塑有限公司，是一家专业生产各类橡胶制品及橡胶五金结合的配套服务厂商，主要生产加工橡胶、硅胶、丁腈胶、乙丙胶、丁苯胶、天然胶、氟橡胶等各类耐温、耐油、耐水，耐磨、密封、减震、耐介质等橡胶制品。

The Company's production of a variety of specifications fluorine rubber, EPDM rubber, acrylic rubber, nitrile rubber series, including the oil seal products: oil seal-under-valve, engine oil seals, shock absorber oil seal, dust cap, O-ring rubber and other miscellaneous items, the company can make a customer's request to let you satisfied with the products.

本公司生产各种规格的氟橡胶、三元乙丙胶、丙烯酸酯胶、丁腈胶系列，油封产品包括：气门杆油封、发动机油封、减震器油封、防尘罩、O型圈及其它橡胶杂件，公司可以根据客户的要求做出让您满意的产品。

Now, however, all children continue in "comprehensive" schools, and the eleven-plus determines which courses of study the child will follow.

然而现在，所有的孩子都要在综合学校继续学习，所以这次考试只是决定他们将要学习哪些课程。

Cultivatable land , and led to a general recognition that development must not be carried at the cost of agriculture .

城区的迅速扩大在很多情况下侵占了宝贵的可耕地，使人们普遍认识到发展不能以牺牲农业为代价。