Asymmetric Conjugate Addition of α-Cyanoketones to Enones Using Diaminomethylenemalononitrile Organocatalyst
Autor: | Yuta Noda, Kosuke Nakashima, Shin-ichi Hirashima, Yuji Koseki, Tsuyoshi Miura |
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Rok vydání: | 2018 |
Předmět: | |
Zdroj: | The Journal of Organic Chemistry. 83:2402-2408 |
ISSN: | 1520-6904 0022-3263 |
Popis: | A diaminomethylenemalononitrile organocatalyst efficiently catalyzed the asymmetric conjugate addition of α-cyanoketones to vinyl ketones to give the corresponding 1,5-dicarbonyl compounds, which bear an all-carbon quaternary stereogenic center with high enantioselectivities. This report is the first example of the asymmetric conjugate addition of α-cyanoketones to vinyl ketones using an organocatalyst. |
Databáze: | OpenAIRE |
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