Copper-catalyzed acylation of pyrazolones with aldehydes to afford 4-acylpyrazolones.
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Copper-catalyzed acylation of pyrazolones with aldehydes to afford 4-acylpyrazolones.

Xiao, Yan;Wu, Xiaopeng;Teng, Jiangang;Sun, Song;Yu, Jin-Tao;Cheng, Jiang;
Organic & biomolecular chemistry 2019 Vol. 17 pp. 7552-7557
205
xiao2019coppercatalyzedorganic

Abstract

Copper-catalyzed direct acylation of the alkenyl C-H bond in 1,2-dihydro-3H-pyrazol-3-ones has been developed, affording a series of 4-acylpyrazolones in moderate to good yields. Notably, this protocol involves readily accessible substrates and reagents, which have good functional group tolerance leading to pyrazolone derivatives under mild reaction conditions.

Keywords

uplc-ms/ms monosaccharide composition polyporus umbellatus polysaccharide pre-column derivation

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DOI:
10.1039/c9ob01486a

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ID: 64665
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