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

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

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 eve...

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Veröffentlicht in:Zeitschrift für Naturforschung. B, A journal of chemical sciences A journal of chemical sciences, 1997-03, Vol.52 (3), p.355-358
Hauptverfasser: Bringmann, Gerhard, Wuzik, Andreas, Schupp, Olaf, Peters, Karl, Peters, Eva-Maria
Format: Artikel
Sprache:eng
Schlagworte:
Biaryl Coupling
Bridged Biaryl
Crystal Structure
Stereochemistry
Thionolactone
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Zusammenfassung: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.
ISSN:0932-0776
1865-7117
DOI:10.1515/znb-1997-0310