4-nitro-1H-pyrazole → HCID 20038758, compound

HRID 1904267Notes

Reaction equation

HRID 1904267 reaction equation
[N+:1]([C:4]1[CH:5]=[N:6][NH:7][CH:8]=1)([O-])=O.[CH3:9][CH2:10][O:11][C:12]([CH:14]1[C:18](=O)[CH2:17][CH2:16][CH2:15]1)=[O:13]>>[NH:6]1[CH:5]=[C:4]([NH:1][C:15]2[CH2:16][CH2:17][CH2:18][C:14]=2[C:12]([O:11][CH2:10][CH3:9])=[O:13])[CH:8]=[N:7]1

Participants

3

Reactant 2

HCID 163764-nitro-1H-pyrazoleHCID 69136Ethyl 2-oxocyclopentanecarboxylate

Product 1

HCID 20038758HCID 20038758, compound

Procedure

The title compound was prepared from 4-nitropyrazole (5.2 g, 0.046 mole) as in description 7, using ethyl 2-cyclopentanonecarboxylate instead of ethyl 2-cyclohexanonecarboxylate. The product was obtained as a white solid (9.6 g, 94%) m.p. 121°-123° C.

Sources & evidence

ORD record
ord-7e63002eae5d4f4691e2fa761b7a3fc0
Source dataset
uspto-grants-1989_06
Patent number
US04837238

Reaction notes

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