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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 644830Generated: October 27, 2026

5-Chloro-2-nitroanisole → 5-Methyl-3-(3-methoxy-4-nitrophenyloxy)pyrazole

https://huagongshe.com/reaction/644830

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Chloro-2-nitroanisoleHCID 81110—
Reactant3H-Pyrazol-3-one, 2,4-dihydro-5-methyl-HCID 319771—
Product5-Methyl-3-(3-methoxy-4-nitrophenyloxy)pyrazoleHCID 1786233113.2%

Reaction Steps

Reaction of 3-hydroxy-5-methylpyrazole with 5-chloro-2-nitroanisole was carried out in the same manner as Example 3, to give a yellow viscous substance of 5-methyl-3-(3-methoxy-4-nitrophenyloxy)pyrazole (yield: 13.2%). 1H-NMR (CDCl3, TMS, ppm): δ 2.34 (s, 3H), 3.93 (s, 3H), 5.74 (s, 1H), 6.70 (dd, J=2.4 and 9.1 Hz, 1H), 6.85 (d, J=2.4 Hz, 1H), 7.95 (d, J=9.1 Hz, 1H), 9.45 (br s, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07700786B2
Source datasetuspto-grants-2010_04
ORD IDord-55d4de3d0321412caa289c0ea8b8773c
Source noteuspto-grants-2010_04