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Updated: Sep 10, 2025

Author Spotlight: Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers
Published on: May 12, 2023
Using blue-light driven iron-catalysis to afford molecular diversity in phosphindole oxide derivatives
Yumeng Yuan1, Lingfeng Zhao1, Marie Cordier1
1Univ. Rennes, CNRS, ISCR UMR 6226, F35000 Rennes, France. christophe.darcel@univ-rennes.fr.
None:
We have developed original blue-light promoted iron-catalyzed reactions of activated alkynes with secondary phosphine oxides in the presence of tert-butylhydroperoxide under argon at room temperature. Depending on the nature of the iron precursors, benzo[b]phosphole oxides were obtained using Fe(NO3)3 in methanol and 9-phenyltribenzo[b,e,g]phosphindole 9-oxide derivatives utilizing Fe(OTf)2 in acetic acid. Control experiments revealed that radical processes are involved, permitting the proposal of a reasonable mechanism.
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