| Summary: | 碩士 === 元智工學院 === 化學工程學系 === 84 === Two-phase reaction can proceed under mild reacton conditon by
phase-transfer catalysis. The phase-transfer catalysis has been
used on various synthesis of organic reaction. However,
carboxylation and acidifation are little discussedin the field.
Moreover, phase-transfer catalysis is a variablue synthesis
technique in transition metal chemistry. Use the phase-transfer
caatalysis as cocatalysts with transition metal compunds
offer some additional options and advantages compared to the
conventional reaction.Phase-transfer catalyst and
organometallic(iron pentacarbonyl, Fe(CO)5) first react to
produce organometal-phase-transfer catalyst in an organic
solvent/ alkaline solution, and then react with -bromo-p-
xylene(RX) to produce 1,3-bis (4-methylphenyl) ketone.The
contents discussed in the text are divided into three parts :
various factors for reaction ,reaction mechanism and reaction
rate expression. In the part of various factors ,the factors
are the flow rate of nitrogen ,agigation rate , amount of
catalyst ,volume ratio ,kinds of catalysts, organic solvent, and
organometallics, temperature...etc. were evaluated to find the
optimun condition. In the part of reaction mechanism according
to the experimental results and the literature resources, the
reaction mechanism was proposed.The reaction path was varified.
The reaction rate expression was developed from reaction
mechansion. the kinetic parameters were obtained.
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