Carbonyldiimidazole-mediated Lossen rearrangement

P Dubé, NFF Nathel, M Vetelino, M Couturier…

Index: Dube, Pascal; Fine Nathel, Noah F.; Vetelino, Michael; Couturier, Michel; Aboussafy, Claude Larrivee; Pichette, Simon; Jorgensen, Matthew L.; Hardink, Mark Organic Letters, 2009 , vol. 11, # 24 p. 5622 - 5625

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Citation Number: 64

Abstract

Carbonyldiimidazole (CDI) was found to mediate the Lossen rearrangement of various hydroxamic acids to isocyanates. This process is experimentally simple and mild, with imidazole and CO2 being the sole stoichiometric byproduct. Significant for large-scale application, the method avoids the use of hazardous reagents and thus represents a green alternative to standard processing conditions for the Curtius and Hofmann ...

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