Diels-Alder approaches to pentacyclic triterpenes of the arborane and the fernane families
Autor: | Ricardo Rodriguez, Siméon Arseniyadis, Eric Guittet, Jose Camara, Loïc Toupet |
---|---|
Rok vydání: | 1993 |
Předmět: | |
Zdroj: | Tetrahedron Letters. 34:1141-1144 |
ISSN: | 0040-4039 |
DOI: | 10.1016/s0040-4039(00)77511-3 |
Popis: | The high pressure Diels-Alder reaction of diene 2 and ene-dione 3 does not lead to the arborane skeleton but to angular isomers 5. The AB + D synthesis of tetracyclic ene-dione 6, followed by construction of the E-ring by a double alkylation, yields the isoarborinol precursor 7; the fernane series is similarly accessed. |
Databáze: | OpenAIRE |
Externí odkaz: |