Fig. 4: Mechanistic studies. | Nature Communications

Fig. 4: Mechanistic studies.

From: Diastereo- and atroposelective synthesis of N-arylpyrroles enabled by light-induced phosphoric acid catalysis

Fig. 4: Mechanistic studies.

a UV–Vis spectra of the substrates and the catalyst. b The reaction of benzoquinone 2a with N-arylpyrrole 3a under CPA catalysis. c The reaction of alkyne 1a with benzoquinone 2a under visible light irradiation. d UV–Vis spectrum of 13a and the reaction of alkyne 1a with 13a under visible light irradiation. e CPA-catalyzed reaction of between 13a with N-arylpyrrole 3a.

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