期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 21, 期 46, 页码 16673-16678出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201502661
关键词
carbazoles; continuous flow; photochemistry; photoredox catalysis; UV; Vis spectroscopy
资金
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Universite de Montreal
- Centre for Green Chemistry and Catalysis (CGCC)
- NSERC CREATE program in Continuous Flow Science
- Canadian Foundation for Innovation (CFI)
An evaluation of both a visible-light- and UV-light-mediated synthesis of carbazoles from various triarylamines with differing electronic properties under continuous-flow conditions has been conducted. In general, triarylamines bearing electron-rich groups tend to produce higher yields than triarylamines possessing electron-withdrawing groups. The incorporation of nitrogen-based heterocycles, as well as halogen-containing arenes in carbazole skeletons, was well tolerated, and often synthetically useful complementarity was observed between the UV-light and visible-light (photoredox) methods.
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