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US5840964A Process for the preparation of the enantiomers of 2-(2-fluoro-4-biphenyl)propionic acid 失效
制备2-(2-氟-4-联苯基)丙酸对映异构体的方法

Process for the preparation of the enantiomers of
2-(2-fluoro-4-biphenyl)propionic acid
摘要:
A process for the preparation of 2-(2-fluoro-4-biphenyl)propianic acid enantiomers comprising a II order resolution of ketals of formula ##STR1## wherein R.sub.1 ad R.sub.2 have the meanings reported in the description; the asterisk shows the chiral carbon atom and the asymmetric carbon atoms marked by .alpha. and .beta. have both R or S configuration is described.
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