Chiral N-heterocyclic carbene catalyzed annulation of α,β-unsaturated aldehydes with 1,3-dicarbonyls
Autor: | Ning-Fei Jiang, Xingliang Zheng, Zhi-Qiang Zhu, Ji-Chang Xiao, Xiaolong Wan |
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Rok vydání: | 2011 |
Předmět: | |
Zdroj: | Chemical communications (Cambridge, England). 47(30) |
ISSN: | 1364-548X |
Popis: | Chiral N-heterocyclic carbene catalyzed annulations of ynals and enals with 1,3-dicarbonyls have been described. The two reactions provided direct and efficient methods for enantioselective synthesis of functionalized dihydropyranones. Comparatively, the reactions starting from ynals were atom-economical; furthermore the reactions of enals demonstrated broader substrate compatibility. |
Databáze: | OpenAIRE |
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