| Summary: | 碩士 === 元智大學 === 化學工程學系 === 91 === This study was tried to prepared the catalyst by using the combinatorial chemistry method and found the optimum conditions. The catalyst was synthesized by mix-split method. A phase transfer catalyst library with 25 kinds of polystyrene-supported quaternary ammonium salt catalyst was synthesized by the reaction of 5 kinds of chloromethlated crosslinked polystyrene with five tert-amines. The allylation of phenol were used as the reactions to screen out the most active catalyst for reaction by using the iterative deconvolution method. For the allylation, it could be have optimization process when chloroform and the most active catalyst were added at the reaction. The most active catalyst meant that triethyl amine was immobilized with several variables (500 rpm, 50oC, increased NaOH concentration and allybromide ratio) in the resin which was 20% ring substitution and 0.177-0.25 mm of pellet size.
The other reaction, we chose oxidation of benzyl alcohol to screen. For oxidation of benzyl alcohol, it could be have optimization process when n-hexane and the most active catalyst were added at the reaction. The most active catalyst meant that triethyl amine was immobilized in the resin which was 20% ring substitution and 0.177-0.25 mm of pellet size.
|
|---|
