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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 863529Generated: October 30, 2026

Methanol → HCID 19696260, compound

https://huagongshe.com/reaction/863529

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantEthyl AcetateHCID 8857—
ReactantDiisopropylethylamineHCID 81531—
ReactantHCID 19696169HCID 19696169—
SolventDimethylformamideHCID 6228—
ProductHCID 19696260HCID 1969626030.7%

Reaction Conditions

Temperature70 °C

Reaction Steps

A mixture of 2,5-diamino-6-bromo-4-nitroindane hydrochloride (1.5 g, 5 mmol), 1-4-dibromobutane (1.3 g, 6 mmol) and diisopropylethylamine (1.9 g, 15 mmol) in DMF (100 mL) was heated at 70° C. for 24 h. The solvent was evaporated and the residue taken up in methylene chloride:water. The aqueous layer was basified with 1N NaOH and back extracted. The combined organic layers were dried over sodium sulfate, filtered and evaporated to give a dark syrup. The purified product (0.5 g) was obtained from column chromatography (4:1 EtOAc:methanol).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05721234
Source datasetuspto-grants-1998_02
ORD IDord-9a9dc7471e8640d58926ac474b6159ff
Source noteuspto-grants-1998_02