期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 57, 期 13, 页码 3401-3405出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201713357
关键词
C-H activation; heterocycles; luminescence; mechanofluorochromism; palladium
资金
- NSF [CHE-1350541]
- Indiana University Purdue University Indianapolis
- IUSSTF
- SERB [2016/66-K.S]
- Division Of Chemistry [1625543, 1350541] Funding Source: National Science Foundation
Reported herein is the first example of a direct arylation of heteroarenes by a transient-ligand-directed strategy without the need to construct and deconstruct the directing group. A wide range of heteroarenes undergoes the coupling with diverse aryl iodides to assemble a large library of highly selective and functionalized 3-arylthiophene-2-carbaldehydes. This route provides an opportunity to rapidly access new mechanofluorochromic materials. Moreover, a novel strategy for mechanochromic luminogens with chromism trends of red- and blue-shifts has been disclosed for the first time by facile functional-group modifications to a common structural core.
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