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KMID : 1059519920360020311
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Journal of the Korean Chemical Society
1992 Volume.36 No. 2 p.311 ~ p.317
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Reactions of 3-Alkylidene-2,4-pentanediones with Arylhydrazines
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Lee Se-Young
Kim Seung-Hoi
Lee Yun-Yeong
Goo Yang-Mo
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Abstract
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Reaction of 3-alkylidene-2,4-pentanediones(1) with arylhydrazines in methanol afforded 4-acetyl-(2), 4-(1-methoxyalkyl)-(3), or 4-vinylpyrazole derivatives(4). 3-(2,2,2-Trichloroethylidene)-2,4-pentanedione(9) reacted with arylhydrazines to give 4-acetyl-1-aryl-3-methylpyrazoles(11). Possible mechanisms for these reactions were proposed.
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