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1 article(s) from Hlina, Johann A

Using the phospha-Michael reaction for making phosphonium phenolate zwitterions

Matthias R. Steiner,
Max Schmallegger,
Larissa Donner,
Johann A. Hlina,
Christoph Marschner,
Judith Baumgartner and
Christian Slugovc

Beilstein J. Org. Chem. 2024, 20, 41–51, doi:10.3762/bjoc.20.6

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Scheme 1: Reaction of 1 with various Michael acceptors (EWG = electron-withdrawing group) forming the zwitter...

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Figure 1: ¹H NMR spectrum of 2a recorded on a 300 MHz spectrometer in CDCl₃ at 23 °C; the inset shows a 3D-mo...

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Figure 2: a) Molecular structure of 2a, hydrogen atoms omitted for clarity, thermal ellipsoids drawn at 30% p...

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Figure 3: Left: UV–vis spectra of 2a, 2b and 2d in chloroform (straight lines) and in methanol (dotted lines)...

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Figure 4: Conversion of 1 (initial c = 0.25 mM) toward 2a, 2b, or 2d in the presence of the respective Michae...

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Scheme 2: Proposed mechanism for intramolecular proton transfer in zwitterion formation with Michael acceptor...

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Published 10 Jan 2024

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