39513-01-4

Upstream product

• 87389-78-4 2-amino-4-methyl-5-phenyl-1,2-dihydro-pyrazol-3-one 
• 74-88-4 methyl iodide 
• 186581-53-3 diazomethane 
• 39512-92-0 1-amino-4-methyl-3-phenylpyrazolin-5-one 

Downstream Products

• 142310-27-8 1-<(1-cyclohexylidene)amino>-3-phenyl-4-methyl-5-methoxypyrazole 
• 142310-23-4 1-(isopropylidene)amino-3-phenyl-4-methyl-5-methoxypyrazole 
• 39513-12-7 3-phenyl-4-methyl-5-methoxypyrazole 
• 142310-35-8 1-<1-(4-biphenylethyl)amino>-3-phenyl-4-methyl-5-methoxypyrazole 
• 142310-33-6 1-<(1-diphenylmethyl)amino>-3-phenyl-4-methyl-5-methoxypyrazole 
• 142310-45-0 1-<(1-phenylethyl)amino>-3-methoxy-4-methyl-5-phenylpyrazole 
• 142310-44-9 1-<(1-phenylethylidene)amino>-3-methoxy-4-methyl-5-phenylpyrazole 
• 142310-32-5 1-<(1-phenylethyl)amino>-3-phenyl-4-methyl-5-methoxypyrazole 
• 142310-34-7 1-cyclohexyloamino-3-phenyl-4-methyl-5-methoxypyrazole 
• 142310-31-4 1-<(1-methylpropyl)amino>-3-phenyl-4-methyl-5-methoxypyrazole 
• 142310-30-3 1-isopropylamino-3-phenyl-4-methyl-5-methoxypyrazole 
• 142310-43-8 1-amino-3-methoxy-4-methyl-5-phenylpyrazole 
• 79994-66-4 3-phenyl-1,2,4-trimethylpyrazolin-3-one 
• 63955-01-1 1-dimethylamino-5-methoxy-4-methyl-3-phenylpyrazole 

Relevant academic research and scientific papers

ON THE REACTIVITY OF SOME N-AMINO HETEROCYCLES TOWARDS DIAZOMETHANE

The occurrence of hydrogen bonding between the nitrogen atom of the NH2 group and a neighbouring enolic proton in tautomerizable N-amino heterocycles allows diazomethane methylation on the NH2 moiety.

1-Aminopyrazolin-5-ones. Synthesis and reactivity

A synthesis of 1-aminopyrazolin-5-ones (I) by chloramine attack on the 2-benzylpyrazolones (IV d-e) has been accomplished.Nucleophilic substitution reactions of aminopyrazolones (I) are investigated; with 1,4-diketones, N,N'-pyrrolylpyrazolones (XVIIa-c)

1-Amino-pyrazolic derivatives

1-AMINO-5-ALKOXY-PYRAZOLE COMPOUNDS OF THE FORMULA: EQU1 wherein R1 represents a lower alkyl group having 1 to 4 carbon atoms, R2 and R3, which may be identical or different, represent a hydrogen atom, a lower alkyl group, a phenyl group, a phenyl group substituted by one or more groups selected from lower alkyl, halogen, nitro and lower alkoxy; R4 represents an amino group, a mono-lower alkyl amino group or a di-lower alkyl amino group; as well as their salts with a mineral or organic acid. A method for the preparation thereof, consisting essentially in internally transforming, in the presence of hydrazine, a 5-hydrazino-isoxazole (or 5-halogenoisoxazole) derivative and alkylating the 5-hydroxy-derivative obtained with a suitable diazoalkane.