Enantioselective Synthesis of C2-Symmetric Spirobipyridine Ligands through Cationic Rh(I)/Modified-BINAP- Catalyzed Double [2 + 2 + 2] Cycloaddition
Autor: | Azusa Wada, Keiichi Noguchi, Ken Tanaka, Masao Hirano |
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Rok vydání: | 2007 |
Předmět: | |
Zdroj: | Organic Letters. 9:1295-1298 |
ISSN: | 1523-7052 1523-7060 |
DOI: | 10.1021/ol070129e |
Popis: | [structure: see text]. Enantioenriched C2-symmetric spirobipyridine ligands were efficiently synthesized through a cationic rhodium(I)/(R)-Segphos or (R)-H8-BINAP complex-catalyzed enantioselective intramolecular double [2 + 2 + 2] cycloaddition of bis-diynenitriles. |
Databáze: | OpenAIRE |
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