Copper(II) Triflate-Catalyzed Nucleophilic Substitution of Propargylic Acetates with Enoxysilanes. A Straightforward Synthetic Route to Polysubstituted Furans
Autor: | Jing-liang Yu, Hui-juan Liu, Zhuang-Ping Zhan, Shao-pei Wang, Xu-bin Cai, Yuan-yuan Cui |
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Rok vydání: | 2007 |
Předmět: | |
Zdroj: | Advanced Synthesis & Catalysis. 349:2097-2102 |
ISSN: | 1615-4169 1615-4150 |
DOI: | 10.1002/adsc.200700234 |
Popis: | A novel and efficient procedure for the synthesis of γ-alkynyl ketones by the nucleophilic substitution of propargylic acetates with enoxysilanes in the presence of a catalytic amount of Copper(II) triflate, has been developed. The substitution reaction can be followed by a 4-toluenesulfonic acid-catalyzed cyclization without purification of the γ-alkynyl ketone intermediates, offering a straightforward synthetic route to polysubstituted furans. |
Databáze: | OpenAIRE |
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