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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 42846Generated: October 29, 2026

Nitrogen → HCID 67365611, compound

https://huagongshe.com/reaction/42846

Reaction equation

Participants

RoleNameHCIDCharge
ReactantNitrogenHCID 947—
ReactantAmmonium ChlorideHCID 25517—
Reactant1-[4-(2-methyl-[1,3]dioxolan-2-yl)-thiophen-2-ylmethyl]-4-nitro-1H-pyrazoleHCID 66928880—
CatalystIronHCID 23925—
SolventEthanolHCID 702—
SolventWaterHCID 962—
ProductHCID 67365611HCID 67365611—

Reaction Conditions

Temperature75 °C

Reaction Steps

In a flame dried round-bottomed flask equipped with a magnetic stir bar and under inert atmosphere (N2), a mixture of 1-[4-(2-methyl-[1,3]dioxolan-2-yl)-thiophen-2-ylmethyl]-4-nitro-1H-pyrazole (115 mg, 0.39 mmol), iron powder (65 mg, 1.16 mmol) and NH4Cl (106 mg, 1.97 mmol) in a mixture of EtOH (3.0 mL) and water (1.5 mL) was stirred at 75° C. for 60 min. The reaction mixture was filtered while hot and concentrated under reduced pressure. The filtrated was dried over Na2SO4, filtered, and the solvents were removed under reduced pressure to give the title compound as a yellow oil: TLC: rf (EA)=0.63. LC-MS-conditions 02: tR=0.76 min; [M+H]+=267.09.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08536209B2
Source datasetuspto-grants-2013_09
ORD IDord-d9302624e474456f9d9f8a369a4d5bec
Source noteuspto-grants-2013_09