Synthesis 2015; 47(08): 1170-1180
DOI: 10.1055/s-0034-1380148
paper
© Georg Thieme Verlag Stuttgart · New York

Synthesis of Acyclic Polycarbonyl Compounds via Ozonolysis of Cyclohexa-1,4-dienes

Julian R. Kuttner
Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Straße 4, 35043 Marburg, Germany   eMail: Hilt@chemie.uni-marburg.de
,
Gerhard Hilt*
Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Straße 4, 35043 Marburg, Germany   eMail: Hilt@chemie.uni-marburg.de
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Publikationsverlauf

Received: 09. Dezember 2014

Accepted after revision: 14. Januar 2015

Publikationsdatum:
19. Februar 2015 (online)


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Abstract

Cobalt-catalyzed Diels–Alder reaction of 2-(trimethylsil­oxy)buta-1,3-dienes with alkynes gives substituted cyclohex-3-en-1-ones that were converted into polycarbonyl derivatives upon ozonolysis. Wittig olefination of ketoaldehydes gave unsaturated polycarbonyl derivatives or alternatively the ketoaldehydes were reacted with primary and secondary amines to give vinylogous amides. 2,7-Didiazo-1-phenylnonane-1,3,6,8-tetraone underwent double diazo-transfer reaction at the 1,3-dicarbonyl subunits by rhodium-catalyzed cyclization to give the cyclohex-2-ene-1,4-dione backbone.

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