Diels–Alder Reactions of γ-Hydroxybutenolides: Approach to the Himbacine Tricyclic Core

Autor: Jason S. George, Natalie E. Jasiewicz, Daniel Beideman, Dasan M. Thamattoor, Stephanie M. Petersen, Samantha M. Zeiders, Ryan E. Cerbone, William H. Miles, Ida B. G. Suarsana, Joseph V. Leo, Nicholas J. Albano, Barbara J. Naimoli
Rok vydání: 2016
Předmět:
Zdroj: Synthesis. 48:924-934
ISSN: 1437-210X
0039-7881
DOI: 10.1055/s-0035-1561348
Popis: The Diels–Alder reaction of γ-hydroxybutenolides with dienes gave good yields of cycloadducts under thermal and Lewis acid catalyzed conditions. The application of this methodology to a more complex system was demonstrated by the synthesis of a model system for the tricyclic himbacine core. The stereo- and regioselective Diels–Alder reaction established three of the stereogenic centers, with the fourth stereogenic center secured by diastereoselective alkylation of the cycloadduct.
Databáze: OpenAIRE