Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2282344Generated: October 31, 2026

Hydrochloric Acid → HCID 58473556, compound

https://huagongshe.com/reaction/2282344

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)isoindoline-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 numberUS09139869B2
Source datasetuspto-grants-2015_09
ORD IDord-a87bf8dc10e4447e9dc1574487622e1b
Source noteuspto-grants-2015_09