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Synthesis 1987; 1987(10): 953-956
DOI: 10.1055/s-1987-28139
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Neue Synthesewege zu chlorsubstituierten Tropon-Derivaten

Gunther Seitz* , Robert van Gemmern
  • *Pharmazeutisch-Chemisches Institut der Philipps-Universität, Marbacher Weg 6, D-3550 Marburg/Lahn, West Germany
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Publication Date:
12 September 2002 (online)

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New Syntheses of Chloro-Substituted Derivatives of Tropone The Diels-Alder reaction of donor-substituted 1.3-dienes with tetra chlorocyclopropene leads to novel bicyclo[4.l.0]heptenes, which on acidic hydrolysis and oxidalion yield a new series of chloro-substituted derivatives of tropone by way of elimination of hydrogen chloride concerted with an electrocyclic opening of the three membered ring.