期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 21, 期 29, 页码 10326-10329出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201501176
关键词
cycloadditions; cyclobutanes; energy transfer; enones; photocatalysis
资金
- NSFC [21172102]
- Ministry of Science and Technology of China [2013CB834804]
- Fundamental Research Funds for the Central Universities [lzujbky-2013-47, lzujbky-2014-175]
This paper reports a room temperature visible-light-driven protocol for the intermolecular [2+2] cycloadditions between coumarin-3-carboxylates and acrylamides analogs by an energy-transfer process. Using an iridium complex FIrPic as a photosensitizer and a 3W blue LED as a light source, an array of cyclobutabenzocypyranones were prepared in moderate to excellent yields.
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