N-Heterocyclic carbene-catalyzed [4 + 2] annulation of α,β-unsaturated carboxylic acids: enantioselective synthesis of dihydropyridinones and spirocyclic oxindolodihydropyridinones

文献情報

出版日 2015-11-16

DOI 10.1039/C5QO00301F

インパクトファクター 5.281

著者

Wen-Qiang Jia, Han-Ming Zhang, Chun-Lin Zhang, Zhong-Hua Gao, Song Ye

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要旨

The N-heterocyclic carbene-catalyzed generation of dienoate from α,β-unsaturated carboxylic acid via the in situ formed mixed anhydride, and the following [4 + 2] annulation with hydrazones and isatin-derived imines was developed, affording the corresponding dihydropyridinones and spirocyclic oxindolodihydropyridinones, respectively, in moderate to good yields with good to excellent enantioselectivities.

掲載誌

Organic Chemistry Frontiers

CiteScore: 7.8

自己引用率: 8.7%

年間論文数: 724

Organic Chemistry Frontiers publishes high-quality research from across organic chemistry. Emphases are placed on studies that make significant contributions to the field of organic chemistry by reporting either new or significantly improved protocols or methodologies. Topics include, but are not limited to the following: Organic synthesis Development of synthetic methodologies Catalysis Natural products Functional organic materials Supramolecular and macromolecular chemistry Physical and computational organic chemistry

N-Heterocyclic carbene-catalyzed [4 + 2] annulation of α,β-unsaturated carboxylic acids: enantioselective synthesis of dihydropyridinones and spirocyclic oxindolodihydropyridinones

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