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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2354005Generated: October 29, 2026

Water → HCID 178420349, compound

https://huagongshe.com/reaction/2354005

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant1,5-DibromopentaneHCID 8100—
ReactantPotassium CarbonateHCID 11430—
ReactantHCID 178511676HCID 178511676—
SolventDimethylformamideHCID 6228—
ProductHCID 178420349HCID 178420349—

Reaction Steps

2.0 g (6.8 mmol) of trans-1 amino-4-dibenzylaminocyclohexane (see Example 2) was dissolved in 50 mL DMF and stirred for 48 h at RT with 1.6 g (7 mmol) of 1,5-dibromopentane and 2 g of potassium carbonate. The mixture was cooled, combined with water, extracted twice with 100 mL of dichloromethane, dried and the solvent was eliminated in vacuo. The residue is purified over a column (about 100 mL silica gel, about 500 mL ethyl acetate 80/methanol 20+1% conc. ammonia). The desired fractions were evaporated down in vacuo and crystallised from petroleum ether. Yield: 1.2 g (49%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07750152B2
Source datasetuspto-grants-2010_07
ORD IDord-ebef52b234e74deda9a9698f26b69410
Source noteuspto-grants-2010_07