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2005
Addition reactions
O 0060
Formation of 1,4-Diketones by Aerobic Oxidative C—C Coupling of Styrene with
Compounds. — 1,4-Diketones are synthesized in a one-pot reaction
14- 033 1,3-Dicarbonyl
consisting of an oxidative C—C coupling of 1,3-dicarbonyl compounds with styrene
and a subsequent pyridine/AcCl-mediated Kornblum—DeLaMare fragmentation. The
products can further be used as building blocks in the synthesis of heterocycles. For
example, (IIIa) is treated with liquid ammonia to afford the new bicyclic pyrrole derivative (IV). — (ROESSLE, M.; WERNER, T.; BARO, A.; FREY, W.;
CHRISTOFFERS*, J.; Angew. Chem., Int. Ed. 43 (2004) 47, 6547-6549; Inst. Org.
Chem., Univ. Stuttgart, D-70569 Stuttgart, Germany; Eng.) — S. Adam
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