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Report | Regular issue | Vol 22, No. 9, 1984, pp.2007-2011
Published online, 1st January, 1970
DOI: 10.3987/R-1984-09-2007
Total Synthesis of Neodihydrothebaine and Bractazonine, Two Dibenz[d,f]azonine Alkaloids from Papaver bracteatum

Hubert G. Theuns,* Herman B. M. Lenting, Cornelis A. Salemink, Hitoshi Tanaka, Masayoshi Shibata, Kazuo Ito, and Robert J. J. Ch. Lousberg

*Laboratory of Organic Chemistry, Agricultural University, De Dreijen 5, 6703 BC Wageningen, The Netherlands


The total syntheses of neodihydrothebaine and bractazonine, two dibenz[d,f]azonine alkaloids from Papaver bracteatum, are described. Neodihydrothebaine is prepared in a total synthesis for the first time. A new and efficient total synthesis of bractazonine is presented.