期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 53, 期 51, 页码 14074-14076出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201408390
关键词
aromaticity; density functional calculations; helical structures; ligand design; structure elucidation
资金
- Precursory Research for Embryonic Science and Technology (PRESTO) from the Japan Science and Technology Agency (JST)
- Ministry of Education, Culture, Sports, Science & Technology in Japan (MEXT) [23685020, 26288095]
- Funding Program for Next-Generation World-Leading Researchers (NEXT Program)
- Council for Science and Technology Policy (CSTP) from the Japan Society for the Promotion of Science (JSPS)
- Grants-in-Aid for Scientific Research [23685020, 26288095] Funding Source: KAKEN
A P-fused double helicene consisting of a highly distorted benzene ring, with a bending angle of 238, has been synthesized by a tandem intramolecular phospha-Friedel-Crafts reaction. Despite the distortion and reduced aromaticity, the double helicene shows thermal and chemical stability. These are important features that make these compounds attractive for applications as a new C-2-symmetric bisphosphine ligand. The simple strategy proposed in this work can be used to prepare a diverse range of distorted molecules.
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