Air-Stable Pd(I) Dimer Enabled Remote Functionalization: Access to Fluorinated 1,1-Diaryl Alkanes with Unprecedented Speed.
Air-Stable Pd(I) Dimer Enabled Remote Functionalization: Access to Fluorinated 1,1-Diaryl Alkanes with Unprecedented Speed.
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DOI:
10.1002/anie.202113667
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发表时间:
2022-01-03
影响因子:
16.6
通讯作者:
Schoenebeck, Franziska
中科院分区:
文献类型:
--
作者:
Kundu, Gourab;Opincal, Filip;Sperger, Theresa;Schoenebeck, Franziska
While remote functionalization via chain walking has the potential to enable access to molecules via novel disconnections, such processes require relatively long reaction times and can be in need of elevated temperatures. This work features a remote arylation in less than 10 min reaction time at room temperature over a distance of up to 11 carbons. The unprecedented speed is enabled by the air‐stable PdI dimer [Pd(μ‐I)(PCy2 tBu)]2, which in contrast to its PtBu3 counterpart does not trigger direct coupling at the initiation site, but regioconvergent and chemoselective remote functionalization to yield valuable fluorinated 1,1‐diaryl alkanes. Our combined experimental and computational studies rationalize the origins of switchability, which are primarily due to differences in dispersion interactions. We report a remote arylation in less than 10 min reaction time at room temperature over a distance of up to 11 carbons. The unprecedented speed is enabled by the air‐stable PdI dimer [Pd(μ‐I)(PCy2 tBu)]2.
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