Phenyldimethylsilyl as an Alcohol Surrogate in Intramolecular Diels-Alder Cycloaddition: Synthesis of .alpha.-Dictyopterol
摘要:
alpha-Dictyopterol (1a), a sesquiterpene isolated from the essential oil of Dicytopteris divaricata, has been synthesized from bicyclic ketone 2, obtained by thermal cyclization of triene intermediate 11. The key observation is that the phenyldimethylsilyl group, a surrogate for hydroxyl, does not interfere with the internal Diels-Alder cycloaddition.
Bifunctional Polyene Cyclizations: Synthetic Studies on Pimarane Natural Products
作者:Julian M. Feilner、Immanuel Plangger、Klaus Wurst、Thomas Magauer
DOI:10.1002/chem.202101926
日期:2021.8.25
Polyenecyclizations generate molecular complexity from a linear polyene in a single step. While methods to initiate these cyclizations have been continuously expanded and improved over the years, the majority of polyene substrates are still limited to simple alkyl-substituted alkenes. In this study, we took advantage of the unique reactivity of higher-functionalized bifunctional alkenes. The realization
Phenyldimethylsilyl as an Alcohol Surrogate in Intramolecular Diels-Alder Cycloaddition: Synthesis of .alpha.-Dictyopterol
作者:Douglass F. Taber、Rama S. Bhamidipati、Larry Yet
DOI:10.1021/jo00122a038
日期:1995.9
alpha-Dictyopterol (1a), a sesquiterpene isolated from the essential oil of Dicytopteris divaricata, has been synthesized from bicyclic ketone 2, obtained by thermal cyclization of triene intermediate 11. The key observation is that the phenyldimethylsilyl group, a surrogate for hydroxyl, does not interfere with the internal Diels-Alder cycloaddition.