The Curtius Rearrangement of Cyclopropyl and Cyclopropenoyl Azides. A Combined Theoretical and Experimental Mechanistic Study
作者:Vinod Tarwade、Olga Dmitrenko、Robert D. Bach、Joseph M. Fox
DOI:10.1021/jo801104t
日期:2008.11.7
A combined experimental and theoretical study addresses the concertedness of the thermal Curtius rearrangement. The kinetics of the Curtius rearrangements of methyl 1-azidocarbonyl cycloprop-2-ene-1-carboxylate and methyl 1-azidocarbonyl cyclopropane-1-carboxylate were studied by (1)H NMR spectroscopy, and there is close agreement between calculated and experimental enthalpies and entropies of activation