An enantioselective synthesis of cyclopentenediones bearing a pyrazole unit has been achieved through an organocatalytic Michael addition/oxidation process. This desymmetrization reaction led to the desired pyrazole-cyclopentenediones with high yield and good enantioselectivities. The postulated cross-dehydrogenative coupling-mechanism has been investigated via preliminary control experiments. (Figure presented.). © 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
Desymmetrization of cyclopentenediones via organocatalytic cross-dehydrogenative coupling / Vetica, Fabrizio; Bailey, Stephen; Chauhan, Pankaj; Turberg, Mathias; Ghaur, Adjmal; Raabe, Gerhard; Enders, Dieter. - In: ADVANCED SYNTHESIS & CATALYSIS. - ISSN 1615-4150. - 359:21(2017), pp. 3729-3734. [10.1002/adsc.201700917]
Desymmetrization of cyclopentenediones via organocatalytic cross-dehydrogenative coupling
Vetica, Fabrizio;
2017
Abstract
An enantioselective synthesis of cyclopentenediones bearing a pyrazole unit has been achieved through an organocatalytic Michael addition/oxidation process. This desymmetrization reaction led to the desired pyrazole-cyclopentenediones with high yield and good enantioselectivities. The postulated cross-dehydrogenative coupling-mechanism has been investigated via preliminary control experiments. (Figure presented.). © 2017 Wiley-VCH Verlag GmbH & Co. KGaA, WeinheimFile | Dimensione | Formato | |
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