Asymmetric [1,3]-dipolar cycloaddition reactions: synthesis of highly substituted proline derivatives
Autor: | Weixu Zhai, David J. Aldous, S. C. Aldous, Robert M. Williams |
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Rok vydání: | 1992 |
Předmět: | |
Zdroj: | The Journal of Organic Chemistry. 57:6527-6532 |
ISSN: | 1520-6904 0022-3263 |
DOI: | 10.1021/jo00050a029 |
Popis: | The asymmetric [1,3]-dipolar cycloaddition reactions of azomethine ylides derived from (SR,6S)-2,3,5,6-tetrahydro-5,6-diphenyl-1,4-oxazin-2-one with various aldehydes and methyl maleate is described. The reactions prove to be highly endo-selective, installing three contiguous stereogenic centers in the newly formed five-membered ring with essentially complete stereochemical control |
Databáze: | OpenAIRE |
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