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4-Amino-3-pyrazolin-5-ones reaction with aldehydes

Presumably the linking group is >NCH—N<. Bisamides of l-(amino-phenyl)-2-pyrazolin-5-ones and of 3-amino-2-pyrazolin-5-ones have been used. l-(3-Aminophenyl)-3-methyl-2-pyrazolin-5-one reacts with many aldehydes and ketones to form polymers.964 Probably condensation occurs at C-4 and the amino group. The product of reaction of p-cresol with formaldehyde has been found to react with 1-(4-hydroxy -phenyl)-3-methyl-2-pyTazolin-5-one to give a polymer that must have the aromatic and pyrazolinone rings connected by ether linkages.1269... [Pg.127]

See other pages where 4-Amino-3-pyrazolin-5-ones reaction with aldehydes is mentioned: [Pg.68]    [Pg.127]    [Pg.140]    [Pg.727]    [Pg.162]    [Pg.154]    [Pg.345]    [Pg.271]   
See also in sourсe #XX -- [ Pg.78 , Pg.121 ]



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2-Pyrazolin-5-one, 3-

2-pyrazoline

3- Amino-3-pyrazoline, reaction with

Pyrazolinate

Pyrazolines

Pyrazolines, 3-amino

Pyrazolines, reaction with

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