SCHEDULED MAINTENANCE
The highly efficient direct α-alkylation of unactivated amides has been accomplished using alcohols in the presence of the Ru-PNN catalyst (0.1 mol%) with a high turnover number. Using this approach, 2-oxindole was directly transformed into C3-alkylated 3-hydroxyindolin-2-one in one step without the use of any oxidant.
M. B. Chaudhari, G. S. Bisht, P. Kumari and B. Gnanaprakasam, Org. Biomol. Chem., 2016, 14, 9215 DOI: 10.1039/C6OB01786J
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