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Licensed Unlicensed Requires Authentication Published by De Gruyter June 2, 2014

1,3-Di-terf-butyl-6H-benzo[b]naphtho[1,2-d]pyran-6-thione, a Severely Helically Distorted Thionolactone-Bridged Biaryl

  • Gerhard Bringmann , Andreas Wuzik , Olaf Schupp , Karl Peters and Eva-Maria Peters

Abstract

The title compound 2c, a potentially useful synthetic intermediate in stereoselective biaryl synthesis, has been prepared from the oxolactone 1c, by treatment with Lawesson′s reagent. An X-ray structure analysis reveals its strongly helically distorted structure, the overall molecular distortion even slightly exceeding that of the corresponding oxo compound 1c.

Received: 1996-10-18
Published Online: 2014-6-2
Published in Print: 1997-3-1

© 1946 – 2014: Verlag der Zeitschrift für Naturforschung

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