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Synthesis of dienic acids. Application of arndt - eistert reaction to unsaturated diazoketones
Abstract Different modes of decomposition of dienic diazoketones have been studied, leading to either formation of vinyl-cyclopropanes or Wolff-rearranged acids or esters. Preparation of fourExpand
  • 14
Intramolecular carbenoid addition to 1,3-dienes. Synthesis of cyclopentene annulated ring systems.
Abstract Diazoketones containing a 1,3-diene moiety were decomposed to yield corresponding vinylcyclopropanes stereospecifically. Transformation of vinylcyclopropanes to cyclopentenes is describedExpand
  • 8
ANOMALOUS PRODUCTS OF ULLMANN CONDENSATION
Bei dem Versuch, die Salze (Ia) bzw. (Ib) durch Ullmann-Kondensation in die fur die Synthese von Cycleanin (IV) benotigte Vorstufe (III) zu uberfuhren, wurden ungewohnlicherweise die Methylather (II)Expand
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