Nickel(II) Tetraphenylporphyrin as an Efficient Photocatalyst Featuring Visible Light Promoted Dual Redox Activities
作者:Tanumoy Mandal、Sanju Das、Suman De Sarkar
DOI:10.1002/adsc.201801737
日期:2019.7.2
cost‐effective and efficientvisiblelight induced photoredoxcatalyst. The ground state electrochemical data (CV) and electronic absorption (UV‐Vis) spectra reveal the excited state redox potentials for [NiTPP]*/[NiTPP].− and NiTPP].+/[NiTPP]* couples as +1.17 V and −1.57 V vs SCE respectively. The potential values represent NiTPP as a more potent photocatalyst compare to the well‐explored [Ru(bpy)3]2+. The non‐precious
The copper-catalyzeddecarboxylative selenation of aromaticcarboxylicacids with diselenide is reported. This transformation tolerated a diverse set of functional groups on the substrates, including pentafluorobenzoic acid and heteroaromatic acids, delivering diaryl and methyl aryl selenides in good to excellent yields. Mechanistic studies indicated that the copper catalyst is essential in the activation