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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2038199Generated: November 1, 2026

Hydrochloric Acid → HCID 58473556, compound

https://huagongshe.com/reaction/2038199

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantDichloromethaneHCID 6344—
ReactantHydrazine hydrate (1:1)HCID 24654—
ReactantHCID 58473621HCID 58473621—
SolventEthanolHCID 702—
ProductHCID 58473556HCID 58473556100%

Reaction Conditions

Temperature80 °C

Reaction Steps

2-(4-(2,7-dibromo-9-methyl-9H-fluoren-9-yl)butyl)iso indo line-1,3-dione (3.08, 5.71 mmol) was dissolved in ethanol (250 mL) under nitrogen. To the mixture was added hydrazine monohydrate (2.77 mL, 57.1 mmol), and the reaction was refluxed at 80° C. for 3.0 hours. The reaction was cooled to room temperature, and added 1M HCl (˜100 mL). The mixture was stirred for 30 minutes or until all solids were dissolved. Dichloromethane was added to the solution and the organic layer was extracted with saturated NaHCO3 three times, and washed with water. The organic layers were collected and removed solvent by vacuo to give an yellow oil (2.33 g, 100%). 1H NMR (500 MHz, CD2Cl2): δ=7.57 (d, 2H), 7.52 (d, 2H), 7.46-7.48 (dd, 2H), 2.39-2.42 (t, 2H), 1.95-1.98 (t, 2H), 1.44 (s, 3H), 1.17-1.23 (m, 2H), 0.59-0.65 (m, 2H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08575303B2
Source datasetuspto-grants-2013_11
ORD IDord-87ac704443a947648d7ae7b0e595bdf2
Source noteuspto-grants-2013_11