FMP Publications

Our publications are recorded in a searchable database since 2010, updates will be added regularly.

All :: 2013
All :: (, A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z 
All :: Haag(*), ... , Huy(*), Huynh(*), Hwang, Hyvl(*) 
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Electrospray Ionization Mass Spectrometry Reveals an Unexpected Coupling Product in the Copper-Promoted Synthesis of Pyrazoles
Hyvl(*), J., Agrawal, D., Pohl(*), R., Suri(*), M., Glorius(*), F.; Schröder(*), D.
Organometallics, 32:807-816

Tags: Chemical Biology II (Hackenberger)

Abstract: The reaction mechanism of the intermolecular oxidative formation of pyrazole 2 via a C-C/N-N bond-formation cascade of the enaminone 1 is investigated by means of ESI-MS. No direct reaction intermediates are observed; however, the formation of an unexpected imidazolid-3-one derivative X is observed that involves an oxidative dimerization of 1 in the presence of dioxygen. The derivative X is isolated and characterized by means of multidimensional H-1 and C-13 NMR spectroscopy.

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Leibniz-Forschungsinstitut für Molekulare Pharmakologie im Forschungsverbund Berlin e.V. (FMP)
Campus Berlin-Buch
Robert-Roessle-Str. 10
13125 Berlin, Germany
+4930 94793 - 100 
+4930 94793 - 109 (Fax)

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