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Stereoselective Pummerer reaction of 4-p-chlorophenylthiane S-oxide with acetic anhydride

✍ Scribed by Tatsuo Numata; Osamu Itoh; Shigeru Oae

Publisher
Elsevier Science
Year
1979
Tongue
French
Weight
135 KB
Volume
20
Category
Article
ISSN
0040-4039

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## Abstract On treatment of a 2,5‐bissilylsubstituted thiophene S‐oxide or dibenzothiophene S‐oxide with trifluoroacetic anhydride, the equillibria between the corresponding substrates and hypervalent sulfur compounds (sulfurane or Ξ»^4^‐sulfane) have now been first detected by low temperature NMR e