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Process for synthesizing norfloxacin
The invention discloses a synthetic method of norfloxacin. The method comprises the following steps: taking toluene as a solvent, causing methyl carbonate to react with
Preparation method of sulfogaiacol
The invention discloses a preparation method of sulfogaiacol. The preparation method comprises the following steps: by taking sulfuric acid as a solvent and a sulfonating agent, cooling to -5 DEG C
One 1-ethoxycarbonyl-5-methyl - (3r) - tert-butyldimethylsilyloxy glutarate Synthesis
The present invention discloses a 1-ethoxycarbonyl-5-methyl - (3R) - Synthesis of tert-butyldimethylsilyloxy glutarate. Methanol as solvent, was added (R) - (-) - 4- cyano-3-hydroxybutyric acid,
手性(salen)Co配合物的合成及其在水解动力学拆分中的应用
综述了近几年来手性(salen)Co金属配合物的合成及其在水解动力学拆分末端环氧化合物中的应用。设计更合适的配体、发展可重复利用的催化剂、对催化剂及催化体系进行理论计算和模拟是当前乃至今后该领域研究工作的重点。
High selectivity method for synthesizing moxifloxacin
The invention discloses a high selectivity method for synthesizing moxifloxacin. The method comprises the following steps of: reacting boric anhydride with trifluoro acetic anhydride to obtain a
缩醛法合成1,1-二甲氧基丙酮
1,1-二甲氧基丙酮是一种重要有机中间体,本文采用缩醛化反应,以丙酮醛为原料,与甲醇在浓硫酸催化作用下合成1,1-二甲氧基丙酮,反应较佳条件为浓硫酸:丙酮醛:甲醇=0.03:1:7(摩尔比),反应温度为65℃.
Synthesis method of cis 3-phenyl substituted s-proline derivative
The invention provides an optical isomers pure cis 3-phenyl substituted s-proline derivative synthesis method. A route is as follows: taking the substituted cinnamaldehyde and nitroethyl alcohol as
Rosuvastatin preparing intermediates
The present invention discloses a rosuvastatin Intermediate (4R, 6S) -6 - [(1E) -2- [4- (4- fluorophenyl) -6-isopropyl-2- [methyl ( methylsulfonyl) amino] -5-pyrimidinyl] ethenyl]
(S)-3-羟基-γ-丁内酯的合成进展
根据(S)-3-羟基-γ-丁内酯合成路线中起始原料的不同,综述了以L-苹果酸、(s)-4-氯-3-羟基丁腈、(2R,3R)-2,3-二羟基-γ-丁内酯、(S)-肉碱、乳糖、麦芽糖等为原料的几种类型的合成,并评述了其优缺点。
“一锅法”合成(2R,3R)-环氧丁酸的工艺研究
TLDR
It’s time to dust off the dustbin lids and start cleaning up after yourself.
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