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Citation: Li Zhengming, Zhou Xiajuan, Yao Enyun, Wang Suhua. SYNTHESES OF 1-ARYL-1,4-DIHYDRO-6-METHYL-4-PYRIDAZONE-3-AMIDES[J]. Chinese Journal of Applied Chemistry, ;1993, 10(6): 86-88. shu

SYNTHESES OF 1-ARYL-1,4-DIHYDRO-6-METHYL-4-PYRIDAZONE-3-AMIDES

1.
Elemento-Organic Chemistry Institute, Nankai University, 300071 Tianjin

Received Date: 8 February 1993
Available Online: 17 May 1993
Fund Project:

α-Methyl pyrazones have been reacted with aryl diazonium salts to form 3-arylhy-drazones-6-methyl-2,4-dioxopyranones,which are converted to 1-aryl-6-methyl-4-oxo-pyri-dazinone-3-carboxylic acids by cyclization. A series of 4-pyridazinone-3-amides were obtained by reacting the carboxylic acids with ethylchlorocarboxylate and corresponding amines. The structures of new compounds thus obtained were checked by elemental analyses,IR,NMR and MS measurements.
- pyridazinone,
- chemical induction agent of male sterility,
- synthesis
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