Synthesis of a 13C,15N labeled imidazole and characterization of the 2,5-endoperoxide and its decomposition
摘要:
A synthesis of C-13, N-15 labeled imidazoles was developed which allows the direct detection of a transient 2,5-endoperoxide at -100 degreesC. The endoperoxide was thoroughly characterized by H-1,C-13 and N-15 NMR. Upon warming, the endoperoxide decomposes via a series of transient intermediates to (CO2)-C-13 and 1,2-diphenyl-ethanediimine. (C) 2000 Elsevier Science Ltd. All rights reserved.