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The newest genetic weight losing technology is adopted in the production of acai berry abc.  The product was obtained rimonabant. Reaction is as follows.  . The research programs and goals.  Inspection and analysis of the literature, the proposed liquid bromine synthesis of rimonabant. In the literature news, on the basis of the reaction. . The conditions were optimized, in order to improve the yield of the reaction, reducing raw material consumption, reduce response costs, and high purity. The Limo class products. In an ice bath, 21.39 (0.126m01) chloropropiophenone dissolved in 60mL glacial acetic acid, and then in the machine. Mechanical stirring under added 6.5mL (O.126m01) liquid bromine, dropping time is about 0.5h.
FLF inacai berry abc acts as the inhibitor of fat cells. Silicon sand, then adding with a good eluting eluent V (ethyl acetate) / v (petroleum ether) = 1:9, collecting. Rf = 0.30 points (to expand the agent as follows: v (ethyl acetate) / v (petroleum ether) = 1.9). Steam addition to the solvent to obtain the product. 2.3 5 (4-chlorophenyl) -1 - (2,4 -:-chlorophenyl). 4-methyl-1H_ pyrazol-3 - carboxylic acid synthesis. . Study on the Synthesis of Rimonabant.  . Ethanol. Sodium hydroxide. Hydrochloric acid. . . 2.3.3 reaction steps.  . AR. AR. AR. Sinopharm Chemical Reagent Co., Ltd. Nanjing Chemical Reagent Co., Ltd. Nanjing Chemical Reagent Co., Ltd.  . 0.319 (13.5mm01) Na added to 30mL of anhydrous ethanol.
More appropriate the amount of liquid bromine. Liquid bromine and p-chlorophenyl acetone ratio of 1: l. As 21.39 (0.126m01) the chloropropiophenone feeding amount, the amount of acetate 60mL, the amount of liquid bromine. 6.5mL (O.126m01), dropping liquid bromine ice bath to maintain the environment, the reaction time of 1.5h. Therefore, the skin of botanical slimming soft gel takers’ skin is still smooth. the reaction at room temperature, other anti-. Should conditions remain unchanged, only to change the dropping time of the liquid bromine. It can be seen when liquid bromine dropwise time. oh when the yields and purity of the largest. When the addition time of small.
The presence of excess halogen, the reaction does not replace the stage, remain in the Q of a single easy to continue to react with an n-bit straight. To all hydrogen atoms have been replaced last. Synthesized by the bromination of chlorobenzene acetone reaction remain in the single-bromo stage, so a bromide chloropropiophenone. . Structural characterization of the 3.1.5 product of a bromo chloropropiophenone. Determination of melting point: that the measure was the product of the melting point of 75 ° C (literature as 77-78 ° C). Liquid spectrum to determine the purity of 97%. NMR spectra and spectra analysis.  botanical slimming is specially for simple obesity.
 Can be seen by the data in the table, when the reflux time was 0.5 h, yield a clear gap compared to reflux for 1h,. When the reflux time over one hour, the product yield did not change significantly, indicating that the response has been basically completely. More appropriate reaction reflux time. Oh. When the reflux time. oh, the product of the yield of 72%, compared with the text. Offer value (42%) significantly improved. . . 3.2.3 acetoacetate B spiritus amount of influence on the reaction. The amount of sodium hydride 2.69 (O.065moi) n the bromide chloropropiophenone dosage for 9.759 (0.039m01), four. After you take this meizitang for 10 days, 5kg weight can be reduced.