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Direct C–H Carboxylation Forming Polyfunctionalized Aromatic Carboxylic Acids by Combined Brønsted Bases

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posted on 2022-01-20, 13:37 authored by Masanori Shigeno, Kazuya Hanasaka, Itsuki Tohara, Koki Izumi, Hiroyuki Yamakoshi, Eunsang Kwon, Kanako Nozawa-Kumada, Yoshinori Kondo
CO2 fixation into electron-deficient aromatic C–H bonds proceeds with the combined Brønsted bases LiO-t-Bu and LiO-t-Am/CsF/18-crown-6 (t-Am = CEtMe2) under a CO2 atmosphere to afford a variety of polyfunctionalized aromatic carboxylic acids.

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