A formal total synthesis of (±)-9-isocyanoneopupukeanane
作者:A. Srikrishna、G. Satyanarayana
DOI:10.1016/j.tet.2005.07.016
日期:2005.9
A formal total synthesis of the marine sesquiterpene (±)-9-isocyanoneopupukeanane starting from the readily available monoterpene carvone has been accomplished employing a combination of intermolecular Michael addition–intramolecular Michaeladdition reaction and an intramolecular rhodium carbenoid C–H insertion reaction as key steps, and identifying the isopropenyl group as a masked hydroxy group.
Enantioselective First Total
Syntheses of 2-(Formylamino)trachyopsane and <i>ent</i>-2-(Isocyano)trachyopsane
via a Biomimetic Approach
作者:A. Srikrishna、G. Ravi
DOI:10.1055/s-0028-1087382
日期:——
A biomimetic rearrangement of an isotwistane to a tricyclo[4.3.1.0(3,8)]decane has been employed as the key step for the enantioselectivefirst total syntheses of the marine sesquiterpenes 2-(formylamino)trachyopsane and ent-2-(isocyano)trachyopsanes ascertaining the biogenetic relationship between the marine sesquiterpenes neopupukeananes and trachyopsanes.