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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1978379Generated: October 29, 2026

Water → HCID 53939214, compound

https://huagongshe.com/reaction/1978379

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantBenzyl BromideHCID 7498—
ReactantPotassium CarbonateHCID 11430—
Reactanttert-butyl (3R,5S)-3,5-dimethylpiperazine-1-carboxylateHCID 10822535—
SolventDimethylformamideHCID 6228—
ProductHCID 53939214HCID 53939214—

Reaction Conditions

Temperature120 °C

Reaction Steps

To a suspension of 10 g (46.66 mmol.) of cis-1-tert-butoxycarbonyl-3,5-dimethyl piperazine and 12.90 g (93.3 mmol.) of potassium carbonate in N,N-dimethylformamide (100 ml) was added, at room temperature, 11.97 g (70 mmol.) of benzyl bromide. The mixture was stirred for 16 hours at 120° C. To the reaction system was added water, which was subjected to extraction with ethyl acetate. The organic layer was washed with a saturated aqueous saline solution, which was dried over magnesium sulfate, followed by distilling off the solvent. The residue was purified by means of a column chromatography (ethyl acetate/hexane 30%) to give the object compound as a pale yellow oily product. The yield was 13.56 g (95%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06235731B1
Source datasetuspto-grants-2001_05
ORD IDord-5bd3828cfcfb426597a91366473edd17
Source noteuspto-grants-2001_05