Verbindungen der Formel
worin die gestrichelte Linie eine fakultative Bindung bedeutet, als Racemate oder einzelne optische Antipoden.
式中的化合物
其中虚线表示任选键,作为外消旋体或单独的光学反式。
Rearrangement of sclareolide to (4.3.3)-Propellanes under strongly acidic conditions
作者:Daniel Helmlinger、Georg Fráter
DOI:10.1016/s0040-4039(00)60021-7
日期:1992.10
Acid catalysed rearrangement of sclareolide ((+)-1) produces the propellanes (-)-2, (-)-3 and the linear-fused cyclopentenone (-)-5 beside the anticipated product (-)-4.
Synthesis of [4.3.3]Propellanes by Carbenium-Ion Rearrangement and Their Olfactory Characterization
作者:Georg Fráter、Daniel Helmlinger、Philip Kraft
DOI:10.1002/hlca.200390067
日期:2003.3
illustrating the utility and scope of this reaction. The olfactoryproperties of the synthesized [4.3.3]propellanes as well as of the original target structures 10, 33, and 34, prepared from (−)-12 and (−)-15, are discussed. Especially the pronounced ambra odor of (−)-17 vividly contradicts the ‘triaxial rule of amber sensation' and provides new insight into the structural requirements for ambra odorants