3-Hydrazinopyridine → HCID 19351260, compound

HRID 1636360Notes

Reaction equation

[N:1]1[CH:6]=[CH:5][CH:4]=[C:3]([NH:7][NH2:8])[CH:2]=1.[CH2:9]([CH2:11][CH2:12][CH2:13][C:14](CC([O-])=O)=[O:15])[CH3:10]>>[CH2:11]([C:12]1[CH2:13][C:14](=[O:15])[N:7]([C:3]2[CH:2]=[N:1][CH:6]=[CH:5][CH:4]=2)[N:8]=1)[CH2:9][CH3:10]

Participants

Reactant 2

HCID 109095193-Hydrazinopyridine

HCID 178046443-Oxooctanoate

Product 1

HCID 19351260HCID 19351260, compound

Procedure

From the reaction of 3-pyridylhydrazine and ethylbutyrylacetate, 2,4-dihydro-5-propyl-2-(3-pyridyl)-3H-pyrazol-3-one is obtained. Subsequent reaction with 2-ethylaniline yields 4-(2-ethylanilinomethylene)-2,4-dihydro-5-propyl-2-(3-pyridyl)-3H-pyrazo 1-3-one, Mp 143.9° C.

Sources & evidence

ORD record: ord-6396c9ae3cad4a6e98274cd5b163fbd0
Source dataset: uspto-grants-2000_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06034099

Reaction notes

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