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Updated: Dec 19, 2025
![[DPEPhosbcpCu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F59739.jpg&w=3840&q=50)
[DPEPhosbcpCu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst
Published on: May 21, 2019
Germylation of Arenes via Pd(I) Dimer Enabled Sulfonium Salt Functionalization
Aymane Selmani1, Avetik G Gevondian1, Franziska Schoenebeck1
1Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany.
Abstract:
While aryl germanes have recently found usage as coupling partners in powerful catalytic applications, the synthetic access to this promising functionality is currently limited. This report details the straightforward synthesis of functionalized aryl triethylgermanes via formal C-H functionalization. Building on the concept of directing-group-free and site-selective C-H functionalization of arenes to thianthrenium salt intermediates, we showcase their efficient couplings with triethylgermane (Et3Ge-H) at room temperature, which was enabled by the air- and moisture-stable Pd(I) dimer, [Pd(μ-I)(PBu3)]2. The method tolerates numerous functional groups, including valuable (pseudo)halides.
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