An efficient enantioselective synthesis of (+)-isofregenedol was achieved in 13 steps from commercially available cyclohexene oxide without the use of protecting groups. The tetrahydronaphthalenic core of isofregenedol was obtained via a gold(I)-catalyzed benzannulation recently developed in our laboratory.
Characterization of new methyl-substituted tetralins and indans by13C NMR spectroscopy
作者:T. Laurens、F. Schmit-Quilès、D. Nicole
DOI:10.1002/mrc.1260330706
日期:1995.7
In order to perform the analysis of the components contained in fossil fuels, carbon assignments of new methylated derivatives of tetralin and indan were obtained. Their chemical shifts were calculated by applying additivity rules.
Acid induced rearrangement of β,γ-unsaturated ketones
作者:Ajoy K. Banerjee、Julio C. Acevedo、Rosana González、Aníbal Rojas
DOI:10.1016/s0040-4020(01)96118-6
日期:——
The molecular rearrangement of the ketones (1), (10) and (19) to phenanthrene derivative (3) and decalin derivative (11) and (12) is respectively described.