Autor: |
Beth-Ann Badea, Chan Kou Hwang, Youssef L. Bennani, Laura J. Dar-ti, Stacie S. Canan Koch, Kristin S. Marron, Alex M. Nadzan |
Rok vydání: |
1996 |
Předmět: |
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Zdroj: |
Tetrahedron Letters. 37:8109-8112 |
ISSN: |
0040-4039 |
DOI: |
10.1016/0040-4039(96)01885-0 |
Popis: |
The treatment of bicyclic and tricyclic ketones with lithium ethynyl acetylide, followed by the addition of a catalytic amount of CSA or p-TSA, affords the corresponding exocyclic olefinic ester in good yields, and geometric ratios up to 13:1 favoring the cis olefin. This procedure represents an addition to the repertoire of olefination methods and can readily be extended to other cyclic and acyclic systems. |
Databáze: |
OpenAIRE |
Externí odkaz: |
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