Synthesis of oxygenated 4-arylisoflavans and 4-arylflavans
Autor: | David StC. Black, Kasey Wood, Naresh Kumar, Mandar Deodhar |
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Rok vydání: | 2012 |
Předmět: | |
Zdroj: | Tetrahedron Letters. 53:6697-6700 |
ISSN: | 0040-4039 |
Popis: | Oxygenated 4-arylisoflavans and 4-heteroarylisoflavans were synthesized in good yields via BF3·OEt2 catalyzed arylation reactions of 4′,7-diacetoxyisoflavan-4-ol 8 with activated aryl and heteroaryl compounds. These reactions were found to produce stereoselectively the trans isomers. Similar reactions of 4′,7-diacetoxyflavan-4-ol 16 afforded the corresponding 4-arylflavans and 4-heteroarylflavans as mixtures of cis/trans isomers. |
Databáze: | OpenAIRE |
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