期刊
ADVANCED SYNTHESIS & CATALYSIS
卷 364, 期 16, 页码 2852-2858出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adsc.202200500
关键词
Difluoroalkylation; 2-Formylbenzoic Acid; Hydrazine; Iridium; Photocatalytic; Phthalazin-1(2H)-one
资金
- National Natural Science Foundation of China [21372258, 21671151, 21673289]
- Renmin University of China
This study presents a tandem one-pot regioselective synthesis method under visible-light photocatalysis, providing a straightforward approach for the synthesis of C4-difluoroalkylated phthalazin-1(2H)-ones with broad substrate scope and wide functional group tolerance.
Tandem one-pot regioselective synthesis of C4-difluoroalkylated phthalazin-1(2H)-ones from readily available hydrazines, 2-formylbenzoic acids and bromodifluoroacetate derivatives under visible-light photocatalysis is reported. This mild protocol provides straightforward access to various C4-difluoroalkylated phthalazin-1(2H)-ones, and displays broad substrate scope and wide functional group tolerance. Moreover, this process is also suitable for the synthesis of C4-trifluoromethylated and perfluorobutylated phthalazin-1(2H)-ones. The use of fac-[Ir(ppy)(3)] photocatalyst and the introduction of an organic base additive are pivotal to catalysis.
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