Summary
Although in many cases it is possible to prepare enantiomerically pure agrochemicals and pharmaceuticals by stereospecific synthesis, it may often be more practical to use a less complicated synthesis followed by a chromatographic separation of the components of a racemic mixture. This will be true particularly when the unwanted isomers can be recycled back into the synthetic process. However, the relatively low capacity of preparative chromatographic systems makes this approach impractical for large volume chemicals, such as pesticides. However, larger samples can be handled on a process scale by overloading the column and carrying out the separation in the displacement mode.
Here the criteria for process scale separations are examined and compared with the criteria for analytical and preparative separations. Results from a series of studies to model high-capacity chiral separations on cyclodextrin and cellulose-based stationary phases are reported.
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© 1991 Plenum Press, New York
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Smith, R.M., Hall, G.M., Subramanian, G. (1991). Chiral Chromatography on the Process Scale. In: Stevenson, D., Wilson, I.D. (eds) Recent Advances in Chiral Separations. Chromatographic Society Symposium Series. Springer, New York, NY. https://doi.org/10.1007/978-1-4684-8282-9_18
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DOI: https://doi.org/10.1007/978-1-4684-8282-9_18
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