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ChemInform Abstract: Radical Reduction of Cyclic Xanthates: Formation of Alkenes and/or 1,3- Oxathiolanes from 1,3-Oxathiolane-2-thiones.

✍ Scribed by J. UENISHI; T. KUNUGI; Y. KUBO

Book ID: 112025021
Publisher: John Wiley and Sons
Year: 2010
Weight: 31 KB
Volume: 27
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.199602119

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## Abstract The SnCl~4~‐catalyzed reaction of (−)‐thiofenchone (=1,3,3‐trimethylbicyclo[2.2.1]heptane‐2‐thione; **10**) with (__R__)‐2‐phenyloxirane ((__R__)‐**11**) in anhydrous CH~2~Cl~2~ at −60° led to two spirocyclic, stereoisomeric 4‐phenyl‐1,3‐oxathiolanes **12** and **13** __via__ a regiosel