1- methylcyclopropene was synthesized from sodium amino and 3- chloro -2- methylpropene. By changing solvent, temperature and reaction time, the optimum conditions for high yield synthesis of 1- methylcyclopropene were determined. The results showed that the reaction time was 6h with solution A as solvent at a certain temperature of B℃. ...
Category: graduation thesis size: 8 1 1 KB date: 2008- 10-09.
2. Synthesis of Glycoplast Drug Delivery Carrier Mediated by Galactose
Abstract: Objective To synthesize galactose-mediated drug carriers. Methods Acyclovir succinyl was synthesized from acyclovir and succinic anhydride by esterification under the catalysis of dimethylaminopyridine, then succinyl Acyclovir monostearate was synthesized with glycerol monostearate, and finally reacted with galactose. ...
Category: graduation thesis size: 74 1 KB date: 2008- 10-03.
3. Design and synthesis of medicinal p-hydroxybenzoate
The effects of microwave irradiation on the synthesis of butyl p-hydroxybenzoate with different catalysts (ferric chloride, copper sulfate, ammonium ferric sulfate and p-toluenesulfonic acid) were compared. Compared with conventional heating method, microwave irradiation method has the advantages of fast reaction speed, simple operation, small acid-alcohol ratio, no need to add water-carrying agent, high yield and so on. ...
Category: graduation thesis size: 9 1 KB date: 2008- 10-02.
4.[ Pharmacy] Synthesis of 4,4', 4 "-Triaminotriphenylamine
Abstract: 4,4 ′, 4″- triaminotriphenylamine, a triazole drug intermediate, was synthesized from p-chloronitrobenzene and p-nitroaniline by two-step reaction. In the first step, using potassium fluoride/quaternary ammonium salt as catalyst, the yields of conventional heating synthesis method and microwave radiation synthesis method were compared. ...
Category: Graduation thesis size: 92 KB Date: August 29, 2008
5. Synthesis of a new pharmaceutical excipient 2- oxo -(2- hydroxypropyl)-β-cyclodextrin.
Objective: To explore the synthetic conditions of hydroxypropyl β -cyclodextrin in order to obtain ideal results. Methods: The concentration of alkali, reaction time, the amount and mode of adding propylene oxide, different condensation reagents, different solvents and different development conditions were investigated. ...
Category: graduation thesis size: 1 16 KB date: 2008-08- 17.
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