BEHAVIOR OF 4-ARYLHYDRAZONO-3-METHYL-2-PYRAZOLIN-5-ONES TOWARDS ACETYLATION, HYDROXYMETHYLATION, MANNICH REACTION AND CHLOROSULPHONATION .14.

被引:0
|
作者
ETMAN, HA [1 ]
SADEK, EG [1 ]
METWALLY, MA [1 ]
机构
[1] MANSOURA UNIV,FAC SCI,DEPT CHEM,MANSOURA,EGYPT
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中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Interaction of 4 arylhydrazono-3-methyl-2-pyrazolin-5-ones (1) with acetic anhydride, formaldehyde and formaldehyde/sec, amines afforded derivatives (2), while condensation with benzenesulphonyl chloride gave derivatives 3. The phenylsulphonyl radical in 3 was readily eliminated upon treatment with alcoholic potassium hydroxide to give 1. The structures of these compounds were established by analytical and spectral methods.
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页码:213 / 215
页数:3
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