Palladium-Catalyzed C(sp3)–C(sp2) Cross-Couplings of O-(α-Bromoacyl) Cyanohydrins with Boronic Acids: An Entry to Enantioenriched N-Acylated β-Amino Alcohols
Autor: | Robin Hertzberg, Peter Dinér, Christina Moberg |
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Rok vydání: | 2016 |
Předmět: | |
Zdroj: | Synthesis. 48:3175-3182 |
ISSN: | 1437-210X 0039-7881 |
Popis: | Suzuki-type cross-coupling of enantiomerically enriched O-(α-bromoacyl) cyanohydrins with aromatic boronic acids substituted with electron-withdrawing or electron-donating groups gave the expected coupling products in high yields without racemization. These substrates exhibit higher reactivities than analogous substrates lacking the nitrile function, probably as a result of π-coordination of the nitrile to palladium. Reduction of the nitrile group of the products, with accompanying intramolecular acyl transfer, provides access to biologically interesting N-acylated β-amino alcohols. |
Databáze: | OpenAIRE |
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