期刊
ADVANCED SYNTHESIS & CATALYSIS
卷 364, 期 3, 页码 525-530出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adsc.202101241
关键词
Benzofuran-2; 3-diones; Alkynes; Flavones; Decarbonylative cycloaddition; Nickel catalysis
资金
- Science and Technology Program of Guangzhou [201604016037]
- Guangdong Province Zhu Jiang Talents Plan [2016ZT06C090]
- Guangzhou City Talents Plan [CYLJTD-201609]
A new synthetic method was developed for the synthesis of functional flavones using nickel-catalyzed decarbonylative cycloaddition of benzofuran-2,3-diones with alkynes, with yields ranging from 65% to 99%. Terminal alkynes with substituted phenyl groups and internal alkynes like aryl acyl acetylenes and diphenylacetylenes are suitable substrates for this reaction. The effects of bases on the reactions of different types of alkyne substrates were also investigated and discussed.
Y Using dppe as the ligand, the Nickel-catalyzed decarbonylative cycloaddition of benzofuran-2,3-diones with alkynes was established, and a variety of functional flavones were synthesized in 65-99% yields. Terminal alkynes with substituted phenyl groups and internal alkynes such as aryl acyl acetylenes and diphenylacetylenes are suitable for this reaction. The effects of bases on the reactions of different types of alkyne substrates were also investigated and discussed.
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