At present, China's economy is in the period of “deceleration shiftâ€, and the downward pressure on the economy is further increased. It is also a key period for industrial upgrading and sustainable economic development. Under such a "new normal" of economic development, the top leaders of the six domestic and international benchmarking companies in the scientific instrument industry were invited to attend the ACCSI2015 "China Scientific Instrument Enterprise Development Summit Forum", on the "new normal" for the scientific instrument industry. I shared my experiences, observations, and thoughts on topics such as impact and how to seek relevant countermeasures. Here, Shandong Luchuang Analytical Instrument Co., Ltd. summarized the highlights of these guests' speeches for reference by friends from all walks of life. 1. Traditional industries (such as metallurgy, geology, mining, cement, etc.) are currently in a difficult period, and the fields of environment, food, life sciences, etc. that are related to the well-being of ordinary people are promising; 2. Through acquisitions, mergers and acquisitions will rapidly expand to the upstream and downstream of the industrial chain (such as the environment), thus providing users with more comprehensive services; 3. The instrumentation industry itself is an industry with long input and long output cycle. Therefore, as an industry manufacturer, it is necessary to look for medium and short-term market hotspots on the one hand, and long-term planning in product and technology research and development on the other hand. Some domestic analytical instrument manufacturers such as Tianrui Instrument, Tianmei Holdings, and Luchuang Analysis have taken the lead. Shandong Luchuang Analytical Instrument Co., Ltd., as a rising star in the production of domestic chromatographic analytical instruments, has long been recognized by customers in terms of product quality and pre-sales and after-sales service. With cost-effective products, we have successively won the bid for China Railway High-speed Railway Transmission and Transformation Analysis and Analysis Project, Military Aerospace Auxiliary Analysis Project, and PetroChina Kunlun Gas Analysis Project, making due contributions to the intelligent industry under the new normal economy in China! If you have any relevant gas chromatograph, liquid chromatograph requirements or cooperation intentions, please call the company 0632-5080618 or log on to http:// to consult the staff online.
Preparation of Fenebute
1. Prepare the first intermediate
Benzaldehyde and ethyl acetoacetate into ethanol, stir at room temperature under the catalysis of organic alkali reaction with filter cake filtration after 45 ~ 50 h, after the completion of the filter with ethanol elution filter cake, dry cake solids, then ethanol filtrate concentrated to a quarter of the original volume, to cold, concentrate filtering alcohol washing, solid, merging two solid is the first intermediate; The mole ratio of benzaldehyde, ethyl acetoacetate and ethanol is 1:2.5 -3:12-15.
2. Prepare the second intermediate
The first intermediate is added to the mass concentration of 20% sodium hydroxide solution, and the reaction is stirred at 85-90°C for 2-5 hours. After filtration, the filter cake is used for filtration. After filtration, the filter cake is washed, the filtrate is combined and cooled, and the filtrate is cooled by stirring for 3h. Solid second intermediate; The mass ratio of the first intermediate to the sodium hydroxide solution is I: 1.8-2.0;
3. Prepare the third intermediate
The second intermediate was dissolved in pure acetic anhydride solution for reflux 3 ~ 5h. After the reflux, the acetic anhydride was concentrated and dissolved with toluene. After the dissolution, ammonia water was added, and the reaction took place at 60_65°C for 1 ~ 1.5 h. Filtrate, wash and dry the precipitated solid to get the solid third intermediate; The mass ratio of the second intermediate, pure acetic anhydride solution, toluene and ammonia water is 5:1-1.2:0.5-0.8:0.5-0.8;
4. Prepare Finebute
The third intermediate was dissolved in 25% sodium hydroxide solution and cooled to _5°C ~ 10°C. After cooling, sodium hypochlorite was added slowly within 15-20min for 1h reaction, followed by ice bath reaction of 0.5 ~ 1.5 h and water bath reaction of 0.5 ~ 1.5 h. Finally, the temperature was gradually increased to 60 ~ 80°C for 1-5 h, and the reaction was cooled again after completion. After cooling, hydrochloric acid was added in the ice water bath to adjust the PH to 2, and the decolorization was stirred at room temperature. After filtration, sodium hydroxide was added in the ice water bath to adjust the PH to 6-7, and the cooling was stirred for 2 hours. The mass ratio of the third intermediate, sodium hydroxide solution and sodium hypochlorite is 1.0:0.8-1.0:1.0-1.1.
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4 , for the leader of the enterprise, we must have a feeling of industry to serve the country, to be able to withstand loneliness, to withstand the temptation of the outside world. This is especially important for manufacturers who intend to expand to the upstream of the industry chain through their own efforts;
5. For the cultivation of emerging markets (such as the LED industry), the establishment of participation standards is very important, even if it is first to cooperate with enterprises to establish corporate standards;
6. According to foreign experience, the civilian market is a direction, and qualified manufacturers can reserve technical reserves;
7. Turn instrument sales into a solution provider, providing users with more in-depth services. The solutions here include providing methods, reference materials, helping to pass qualifications, training laboratory personnel, and even helping users to improve the entire laboratory. Work efficiency;
8. Currently, global hotspots in life sciences include: translational medicine and personalized medicine, brain planning, and gene sequencing;
9. Bring into play the advantages of the technology that the enterprise has mastered, and cooperate with the application of different industries to carry out the research of local key technologies and expand to other industries;
10. Seize the strategic opportunities proposed by the Chinese government to build the “Belt and Road†and lay out emerging markets and regional markets.