Enantiospecific total synthesis of phytoalexins, (+)-solanascone, (+)-dehydrosolanascone, and (+)-anhydro-β-rotunol
摘要:
Enantiospecific total synthesis of the phytoalexins, solavetivone, anhydro-beta-rotunol, solailascone, and dehydrosolanascone, starting from the readily available monoterpene, (R)-carvone has been accomplished. (c) 2005 Elsevier Ltd. All rights reserved.
Total synthesis of (–)-solavetivone using enantioselective copper-catalysed conjugate addition of Me3Al to a cyclohexa-2,5-dienone intermediate
摘要:
By applying a new enantioselective Cu-catalysed conjugate addition of Me(3)Al, (-)-solavetivone 1 is synthesized stereoselectively from cyclohexa-2,5-dienone 4, prepared from a chiral compound 6 using a regioselective Hg-II-mediated cyclopropyl ring-opening, subsequent Pd-II-mediated spiroannulation of 7, and a stereoselective Pd-0-catalysed hydrogenation of an allylic formate 5 as key reactions.
Total synthesis of (–)-solavetivone using enantioselective copper-catalysed conjugate addition of Me<sub>3</sub>Al to a cyclohexa-2,5-dienone intermediate
By applying a new enantioselective Cu-catalysed conjugate addition of Me(3)Al, (-)-solavetivone 1 is synthesized stereoselectively from cyclohexa-2,5-dienone 4, prepared from a chiral compound 6 using a regioselective Hg-II-mediated cyclopropyl ring-opening, subsequent Pd-II-mediated spiroannulation of 7, and a stereoselective Pd-0-catalysed hydrogenation of an allylic formate 5 as key reactions.
Enantiospecific total synthesis of phytoalexins, (+)-solanascone, (+)-dehydrosolanascone, and (+)-anhydro-β-rotunol
作者:A. Srikrishna、S.S.V. Ramasastry
DOI:10.1016/j.tetlet.2005.08.124
日期:2005.10
Enantiospecific total synthesis of the phytoalexins, solavetivone, anhydro-beta-rotunol, solailascone, and dehydrosolanascone, starting from the readily available monoterpene, (R)-carvone has been accomplished. (c) 2005 Elsevier Ltd. All rights reserved.