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A Catalytic Asymmetric Synthesis of Polysubstituted Piperidines Using a Rhodium(I)-Catalyzed [2+2+2] Cycloaddition Employing a Cleavable Tether
被引:25
|作者:
Martin, Timothy J.
[1
]
Rovis, Tomislav
[1
]
机构:
[1] Colorado State Univ, Dept Chem, Ft Collins, CO 80523 USA
关键词:
asymmetric synthesis;
cycloaddition;
heterocycles;
ALKENYL ISOCYANATES;
2,6-DISUBSTITUTED PIPERIDINES;
STEREOSELECTIVE-SYNTHESIS;
ALKYNES;
INDOLIZIDINES;
CYCLIZATION;
ALKALOIDS;
FROG;
D O I:
10.1002/anie.201301741
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
Break the cycle: The title reaction proceeds with a variety of alkyne substrates in good yield and high enantioselectivity. Upon reduction of the vinylogous amide in high diastereoselectivity (>19:1) and cleavage of the tether, N-methylpiperidine products with functional group handles can be accessed (see scheme). Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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页码:5368 / 5371
页数:4
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