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chaoqun0451铜虫 (小有名气)
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Recently, separation and recycling of the expensive chiral catalysts utilizing soluble PEG (polyethylene glycol) polymer supports have attracted a great of interest. 这句话没看懂，很重要，希望人才们帮忙！ |
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2楼2012-05-31 19:32:45
chaoqun0451
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Recently, separation and recycling of the expensive chiral catalysts utilizing soluble PEG (polyethylene glycol) polymer supports have attracted a great of interest.8 The prominent advantage of PEG-immobilized chiral catalysts lies in that they are soluble in organic solvents, thereby allowing the reaction to proceed homogeneously and display similar activities and enantioselectivities to those of the homogeneous parent systems. The recovery of the PEG-supported catalyst from the reaction mixture can be readily achieved by filtration, precipitation or extraction.原话是这样的，如果PEG都溶于反应体系了，后面如何分离呢，怎样还能沉淀，抽滤呢 |
3楼2012-05-31 19:41:40
