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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1822908Generated: October 31, 2026

5-[(4-Fluorophenyl)methyl]-4H-1,2,4-triazole-3,4-diamine → 5-Chloro-3-(4-fluoro-benzyl)-9H-1,2,3a,4,9,10-hexaaza-cyclopenta[b]fluoren-6-ol

https://huagongshe.com/reaction/1822908

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-[(4-Fluorophenyl)methyl]-4H-1,2,4-triazole-3,4-diamineHCID 21919322—
Reactant4-chloro-5-hydroxy-1H-indole-2,3-dioneHCID 22169664—
SolventEthylene GlycolHCID 174—
Product5-Chloro-3-(4-fluoro-benzyl)-9H-1,2,3a,4,9,10-hexaaza-cyclopenta[b]fluoren-6-olHCID 135502690—

Reaction Conditions

Temperature125 °C

Reaction Steps

According to a cyclization procedure for Example 30, 0.60 mmol of 4-chloro-5-hydroxy-1H-indole-2,3-dione (118.5 mg) and 0.70 mmol of (4-fluoro-benzyl)-[1,2,4]triazole-3,4-diamine (145 mg) in 2 mL of ethylene glycol was stirred at 125° C. overnight (16 hr).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07037909B2
Source datasetuspto-grants-2006_05
ORD IDord-c6138ec3d0b34960abf1beb7d25097e7
Source noteuspto-grants-2006_05