(Chemical Equation Presented) HOMO-logous: The copper-mediated cycloaddition of alkynes with diazo carbonyl compounds to give pyrazoles is reminiscent of the copper-catalyzed cycloaddition of alkynes and azides. The formation of the copper acetylide is proposed to narrow the energy gap between the highest occupied molecular orbital (HOMO) of the alkyne and the lowest unoccupied molecular orbital (LUMO) of the diazo compound. © 2007 Wiley-VCH Verlag GmbH & Co. KGaA.
CITATION STYLE
Qi, X., & Ready, J. M. (2007). Copper-promoted cycloaddition of diazocarbonyl compounds and acetylides. Angewandte Chemie - International Edition, 46(18), 3242–3244. https://doi.org/10.1002/anie.200700069
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