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Synthesis of the First
1Institut für Organische Chemie und Biochemie der Universität, Gerhard-Domagk Strasse 1, D-53121 Bonn (Germany).
Angewandte Chemie (International Ed. in English)
|January 29, 2000
Abstract:
A "true" allenophane with several rings and allenic bridges was synthesized. The key step in the preparation of 1 was the cyclization to a 28-membered macrocycle (52 % yield) starting from a linear molecule, which already contains three of the four allene units.