Palladium-catalyzed cycloaminocarbonylation of 2-aminomethyl- and 2-alkylcarbamoylaryl tosylates with CO

Add time:08/22/2019    Source:sciencedirect.com

The palladium-catalyzed cycloaminocarbonylation of 2-(aminomethyl)aryl tosylates with CO has been established, by which a variety of salicylaldehyde derived 2-(aminomethyl)aryl tosylates may be cyclocarbonylated in the presence of CO, to afford the corresponding substituted isoindolinones in moderate to excellent yields. Furthermore, the method is also effective for the synthesis of isoindoline-1,3-diones and 2-alkyl-1H-benzo[e]isoindol-3(2H)-ones from 2-(N-alkylcarbamoyl)aryl tosylates and 1-(aminomethyl)naphthalene-2-yl tosylates, respectively.

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