Cationic rhodium(I)/segphos-catalyzed cycloisomerization of 1,6- and 1,7-diynes in the presence of 1,2-cyclohexanedione
Autor: | Ken Tanaka, Yousuke Otake, Masao Hirano |
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Rok vydání: | 2007 |
Předmět: | |
Zdroj: | Organic letters. 9(20) |
ISSN: | 1523-7060 |
Popis: | We have developed the first catalytic cycloisomerization of 1,6- and 1,7-diynes leading to trienes and vinylpyrroles by using a cationic rhodium(I)/Segphos complex (2.5−10 mol %) and 1,2-cyclohexanedione (100 mol %). 1,2-Cyclohexanedione may effectively occupy vacant coordination sites and thus promote the present cycloisomerization. |
Databáze: | OpenAIRE |
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