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
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