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Bidentate Lewis Acid Catalyzed Inverse-Electron-Demand Diels-Alder Reaction for the Selective Functionalization of Aldehydes
被引:18
|作者:
Schweighauser, Luca
[1
]
Bodoky, Ina
[1
]
Kessler, Simon N.
[1
]
Haeussinger, Daniel
[1
]
Wegner, Hermann A.
[1
]
机构:
[1] Univ Basel, Dept Chem, CH-4056 Basel, Switzerland
来源:
基金:
瑞士国家科学基金会;
关键词:
aldehydes;
catalysis;
Diels-Alder reaction;
fused-ring systems;
Lewis acids;
ENANTIOSPECIFIC TOTAL-SYNTHESIS;
NATURAL-PRODUCTS;
CHEMICAL SPACE;
NAPHTHALENES;
INSPIRATION;
CYCLIZATION;
DIVERSITY;
BIOLOGY;
METHYL;
D O I:
10.1055/s-0031-1291127
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
The inverse-electron-demand Diels-Alder (IEDDA) reaction catalyzed by a bidentate Lewis acid was applied to enamines generated in situ from aldehydes. In general, a high functional group tolerance has been observed. Side reactions during the enamine forming step can limit the yield of the desired naphthalene. For citronellal as substrate, the initial intermediate after the catalyzed IEDDA reaction was trapped by an intramolecular Diels-Alder reaction to furnish a tricyclic compound. This scaffold represents the framework of natural products such as valerianoids A-C or the patchouli alcohol.
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页码:2195 / 2199
页数:5
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