Fast, acid-free, and selective lactamization of lactones in ionic liquids
…, X Wu, F Russo, M Larhed
Index: Orrling, Kristina M.; Wu, Xiongyu; Russo, Francesco; Larhed, Mats Journal of Organic Chemistry, 2008 , vol. 73, # 21 p. 8627 - 8630
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Citation Number: 21
Abstract
A fast and acid-free one-pot 0.2-30 mmol microwave methodology for direct ionic liquid- mediated preparation of lactams from lactones and primary amines has been developed. The protocol was investigated with a wide range of primary amines and a handful of lactones, including substrates with acid-sensitive substituents. Both γ-lactams and δ-lactams were, despite the complete absence of a Brønsted acid, obtained in useful to excellent ...
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