Process for preparation of (s)-oxetine enantiomers

Details Process for preparation of (s)-oxetine enantiomers Process for preparation of (s)-oxetine enantiomers

C - Chemistry, Metallurgy

07

C

C07C 217/48 (2006.01) C07C 29/56 (2006.01) C07C 213/02 (2006.01) C07C 213/08 (2006.01) C07C 213/10 (2006.01)

Patent

CA 2266299

(S)-oxetines are preparedin high enantiomeric purity centers on resolution using simulated moving bed chromatography of a racemic precursor early in the oxetine synthesis. Resolution is effected with high enantiomeric purity, and subsequent reactions of the desired enantiomer performed with high optical specificity to maintain enantiomeric purity. The undesired enantiomer may be racemized and recycled to the resolution phase to avoid undesired losses.

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