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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2203201Generated: October 30, 2026

Hydrochloric Acid → HCID 89825661, compound

https://huagongshe.com/reaction/2203201

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantTolueneHCID 1140—
ReactantAluminum(III) ChlorideHCID 6451240—
ReactantHCID 89825272HCID 89825272—
SolventEthanolHCID 702—
ProductHCID 89825661HCID 8982566115%

Reaction Conditions

Temperature0 °C

Reaction Steps

(E)-2-Amino-N′-(2-bromo-5-fluorophenyl)-2-oxoacetohydrazonoyl cyanide (10 g, 35 mmol), AlCl3 (20 g, 4.0 eq), and toluene (200 mL) were stirred at 120° C. overnight under N2. The reaction mixture was subsequently cooled to 0° C. and 2N HCl (200 mL) was added. The reaction mixture was stirred at 0° C. for 10 minutes and then filtered to afford a crude solid (4.5 g), which was dispersed in EtOH (500 mL). The mixture was stirred at RT for 4 hours and filtered. The filtrate was concentrated to give the title compound (1.5 g, 15%). 1H NMR (400 MHz, DMSO-d6) δ ppm 9.72 (1H, s), 8.62 (1H, s), 8.23-8.20 (1H, m), 8.00 (1H, s), 7.80 (1H, s), 7.47-7.42 (1H, m); LC-MS (5-95% ACN in H2O gradient with 0.02% NH4OAc, tR 3.020 minutes) ESI+APCI m/z [M+H]+ 285.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09365566B2
Source datasetuspto-grants-2016_06
ORD IDord-e1d33af73cb647548f8691daab20eff6
Source noteuspto-grants-2016_06