Total synthesis of (±)-β-bulnesene, (±)-cryptofauronol, (±)-fauronyl acetate, and (±)-valeranone
作者:Peter G. Sammes、Leslie J. Street
DOI:10.1039/c39830000666
日期:——
A versatile method for the preparation of perhydroazulenes and cis-fused 1-decalones is described and exemplified by the synthesis of the title compounds.
Total synthesis of (±)-β-bulnesene via intramolecular cycloaddition of a 2-substituted 3-oxidopyrylium
作者:Steven M. Bromidge、Peter G. Sammes、Leslie J. Street
DOI:10.1039/p19850001725
日期:——
precursor of a 2-substituted 3-oxidopyrylium, which undergoes smooth intramolecular cyclisation to generate a highly functionalised perhydroazulene intermediate. Further chemical manipulation of the latter readily generates the desired natural product. In order to control the relative geometry of the pendent 4-methyl group in the target molecule, a method involving the stereoselective reduction of an exocyclic