期刊
CHEMICAL COMMUNICATIONS
卷 53, 期 31, 页码 4370-4373出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7cc00781g
关键词
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资金
- Czech Science Foundation [14-29667S]
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic [RVO: 61388963]
A straightforward approach to enantiopure 2H-pyran-modified amino-[5]helicenes and amino[6]helicenes was developed. They were converted to 1,3-disubstituted imidazolium salts and used as NHC ligand precursors in the Ni-0-catalysed enantioselective [2+2+2] cycloisomerisation of aromatic triynes to obtain the model helicene derivatives in up to 86% ee.
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