beta-Aminobeta-ethoxyacrylic acid ethyl ester → 3-Amino-1-(4-nitrobenzyl)-pyrazol-5-one

HRID 460890Notes

Reaction equation

HRID 460890 reaction equation
C([O:3][C:4](=O)[CH:5]=[C:6]([NH2:10])OCC)C.[N+:12]([C:15]1[CH:23]=[CH:22][C:18]([CH2:19][NH:20][NH2:21])=[CH:17][CH:16]=1)([O-:14])=[O:13]>>[NH2:10][C:6]1[NH:21][N:20]([CH2:19][C:18]2[CH:17]=[CH:16][C:15]([N+:12]([O-:14])=[O:13])=[CH:23][CH:22]=2)[C:4](=[O:3])[CH:5]=1

Participants

3

Reactant 2

HCID 278451beta-Aminobeta-ethoxyacrylic acid ethyl esterHCID 18623426((4-Nitrophenyl)methyl)hydrazine

Product 1

HCID 203671833-Amino-1-(4-nitrobenzyl)-pyrazol-5-one

Procedure

17.5 g of β-amino-β-ethoxyacrylic acid ethyl ester and 16.7 g of 4-nitrobenzylhydrazine, analogously to the procedure described in Example 1 yield 17.3 g of the compound identified above as yellowish crystals of melting point 182°, corresponding to 74% of theory.

Sources & evidence

ORD record
ord-d42a471f40e042ea8d6d995d59eecbf8
Source dataset
uspto-grants-1977_12
Patent number
US04061653

Reaction notes

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