Abstract
(R)‐ and (S)‐α‐Terpinyl trifluoroacetate can easily be prepared in 56–64% yield and high ee by the reaction of (R)‐ and (S)‐limonene with trifluoroacetic acid in cyclohexane. The products were fully characterized by 1H and 13C NMR, IR and MS and theirs Chiral‐HRGC analysis showed there is no loss of optical activity during the reaction.
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Acknowledgment
AMS thanks CNPq for a fellowship.
Notes
aThe purity of α‐terpinyl trifluoroacetate (>99%) was checked by comparison of its analytical data with the previously reported (4) as well as by co‐injection in HRGC with two chromatographic columns of different polarities (CARBOWAX and RTX‐5) that showed only one peak.