4-Nitrobenzylamine → Ethyl 5-(4-methoxyphenyl)-2-(4-nitrophenyl)imidazole-4-carboxylate

HRID 1595343Notes

Reaction equation

O[N:2]=[C:3]([C:9]([C:11]1[CH:16]=[CH:15][C:14]([O:17][CH3:18])=[CH:13][CH:12]=1)=O)[C:4]([O:6][CH2:7][CH3:8])=[O:5].[N+:19]([C:22]1[CH:29]=[CH:28][C:25]([CH2:26][NH2:27])=[CH:24][CH:23]=1)([O-:21])=[O:20]>>[CH3:18][O:17][C:14]1[CH:15]=[CH:16][C:11]([C:9]2[NH:27][C:26]([C:25]3[CH:24]=[CH:23][C:22]([N+:19]([O-:21])=[O:20])=[CH:29][CH:28]=3)=[N:2][C:3]=2[C:4]([O:6][CH2:7][CH3:8])=[O:5])=[CH:12][CH:13]=1

Participants

Reactant 2

HCID 291474-Nitrobenzylamine

HCID 178472900HCID 178472900, compound

Product 1

HCID 178470210Ethyl 5-(4-methoxyphenyl)-2-(4-nitrophenyl)imidazole-4-carboxylateYield 35.8%

Procedure

Ethyl 2-hydroxyimino-3-(4-methoxyphenyl)-3-oxopropionate (105.2 g) and 4-nitrobenzylamine (76.4 g) were reacted and treated in the same manner as in Starting Material Synthetic Example 1 to give ethyl 5-(4-methoxyphenyl)-2-(4-nitrophenyl)imidazole-4-carboxylate (55.1 g), which was dissolved in ethyl alcohol. 1 M Sodium hydroxide solution was added and the mixture was reacted and treated in the same manner as in Starting Material Synthetic Example 2 to give 5-(4-methoxyphenyl)-2-(4-nitrophenyl)imidazole-4-carboxylic acid (40.3 g), melting point 205-208° C. (decomposition).

Workup

additiontreated in the same manner as

Sources & evidence

ORD record: ord-cc0d79ccc57c47e292472f40666c6358
Source dataset: uspto-grants-2001_09
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06288061B1

Reaction notes

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