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- W2387066165 abstract "Selective hydrogenation of p-chloronitrobenzene catalyzed by water-soluble Ru-TPPTS complex AC-1.lin the biphasiccatalytic system(aqueous/organic phase)has been studied.The influences of reaction conditions,such as different solvents,aqueousphase pH value,triethylamine,volume ratio of aqueous and organic phase and substrate concentration,on the activity and selectivity have been investigated systematically.It has been found that the reaction rate was obviously accelerated by polar solvents,with toluene and chlorobenzene performing the best.The reaction rate was obviously promoted after the addition of triethylamine.It is also found that the catalytic activity grew rapidly in accordance with the raised aqueous pH value.Nevertheless,the selectivity quickly goes went down alter the aqueous phase pH value9;and the ratio of the aqueous/organic phase also influenced the reaction.Under theconditions with temperature of 90℃,H_2 pressure of 4.0 Mpa,andreactwn time of 6h,the conversion of p-ClC_6H_4NO_2remained high after the first time recycle of the catalyst,But it decreases to 59.7%through three times recycle." @default.
- W2387066165 created "2016-06-24" @default.
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- W2387066165 date "2005-01-01" @default.
- W2387066165 modified "2023-10-07" @default.
- W2387066165 title "Selective hydrogenation of p-chloronitrobenzene catalyzed by water-soluble Ru-TPPTS complex" @default.
- W2387066165 hasPublicationYear "2005" @default.
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