Neue Sesquiterpen-Kohlenwasserstoffe mit anomalen Kohlenstoffgerüst aus Silphium-arten
作者:Ferdinand Bohlmann、Jasmin Jakupovic
DOI:10.1016/s0031-9422(00)81970-6
日期:1980.1
addition to known compounds four new sesquiterpene hydrocarbons, all based on one or other of two tricyclic compounds with anomalous carbon skeletons. The structures were elucidated by extensive NMR studies of the hydrocarbons and of a large number of oxidation products. The reaction of the corresponding diols was investigated in especial detail. A possible biogenetic pathway to the unusual hydrocarbons
Synthetic studies on arene-olefin cycloadditions-VIII. Total syntheses of (±)-silphiperfol-6-ene, (±)-7 α H-silphiperfol-5-ene and (±)-7 β H-silphiperfol-5-ene
作者:Paul A Wender、Sunil K Singh
DOI:10.1016/s0040-4039(00)98278-9
日期:1985.1
Totalsyntheses of (±)-silphiperfol-6-ene, (±)-7 α H-silphiperfol-5-ene and (±)-7 β H-silphiperfol-5-ene are described in which a new element of stereoinduction in arene-olefin meta cycloadditions was tested and a new method for cycloadduct transformation was developed.