Aryloxypropionic acid methyl

Similarly, enantiomeric mixtures of carboxylic acid esters can be separated using transesterification (Fig. 22). An n-butanol/water biphasic medium aryloxypropionic acid methyl ester vras transesterified stereoselec-tively, yielding the butylester of the R enantiomer (69). 

Figure 22 Stereoselective tnins-esterification of aryloxypropionic acid methyl ester.

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