作者:Pascal Dubé、Noah F. Fine Nathel、Michael Vetelino、Michel Couturier、Claude Larrivée Aboussafy、Simon Pichette、Matthew L. Jorgensen、Mark Hardink
DOI:10.1021/ol9023387
日期:2009.12.17
mediate the Lossenrearrangement 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 rearrangements.