Počet záznamů: 1
Electrospray Ionization Mass Spectrometry Reveals an Unexpected Coupling Product in the Copper-Promoted Synthesis of Pyrazoles
- 1.0392310 - ÚOCHB 2014 RIV US eng J - Článek v odborném periodiku
Hývl, Jakub - Agrawal, Divya - Pohl, Radek - Suri, M. - Glorius, F. - Schröder, Detlef
Electrospray Ionization Mass Spectrometry Reveals an Unexpected Coupling Product in the Copper-Promoted Synthesis of Pyrazoles.
Organometallics. Roč. 32, č. 3 (2013), s. 807-816. ISSN 0276-7333. E-ISSN 1520-6041
Grant ostatní: European Research Council(XE) FP7-25936
Institucionální podpora: RVO:61388963
Klíčová slova: gas-phase * catalyzed oxidation * bond-formation * ions
Kód oboru RIV: CC - Organická chemie
Impakt faktor: 4.253, rok: 2013
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.
Trvalý link: http://hdl.handle.net/11104/0221223
Počet záznamů: 1