Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 508771Generated: October 28, 2026

3-(2-chloro-6-fluorophenyl)-1-(3-methoxy-4-nitrophenyl)-1H-1,2,4-triazol-5(4H)-one → 1-(4-amino-3-methoxyphenyl)-3-(2-chloro-6-fluorophenyl)-1H-1,2,4-triazol-5(4H)-one

https://huagongshe.com/reaction/508771

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-(2-chloro-6-fluorophenyl)-1-(3-methoxy-4-nitrophenyl)-1H-1,2,4-triazol-5(4H)-oneHCID 136492401—
CatalystHydrochloric AcidHCID 313—
CatalystIronHCID 23925—
SolventMethanolHCID 887—
Product1-(4-amino-3-methoxyphenyl)-3-(2-chloro-6-fluorophenyl)-1H-1,2,4-triazol-5(4H)-oneHCID 13649243276.3%

Reaction Steps

The title compound was prepared according to the procedure described in step-2 of Intermediate-28 by using 3-(2-chloro-6-fluorophenyl)-1-(3-methoxy-4-nitrophenyl)-1H-1,2,4-triazol-5(4H)-one (0.100 g), iron powder (catalytic), conc.HCl (5-6 drops) and methanol (5 mL) to afford 0.070 g of desired product. 1H NMR (300 MHz, DMSO d6): δ 3.77 (s, 3H), 4.81 (s, 2H), 6.66 (d, J=8.7 Hz, 1H), 7.17 (d, J=8.1 Hz, 1H), 7.26 (s, 1H), 7.50-7.57 (m, 2H), 7.68 (m, 1H), 12.39 (s, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09096545B2
Source datasetuspto-grants-2015_08
ORD IDord-0c54f7904c0a48c79e9c1951d35a42af
Source noteuspto-grants-2015_08