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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 531459Generated: October 31, 2026

Hydrochloric Acid → HCID 90023150, compound

https://huagongshe.com/reaction/531459

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPotassium CarbonateHCID 11430—
Reactanttert-Butyl piperazine-1-carboxylateHCID 143452—
Reactant4-Bromo-1-fluoro-2-nitrobenzeneHCID 2736328—
SolventDimethylformamideHCID 6228—
SolventDiethyl ether methanolHCID 21864698—
ProductHCID 90023150HCID 9002315099%

Reaction Steps

Using similar reaction conditions as described in (step i of Intermediate-2), tert-butyl piperazine-1-carboxylate (1.5 g, 6.81 mmol) was reacted with 4-bromo-1-fluoro-2-nitrobenzene (1.28 g, 6.81 mmol) in DMF (25 ml) and potassium carbonate (2.35 g, 17.02 mmol) to afford crude product. Using similar reaction conditions as described in Step-ii of example-7, above crude was deprotected in HCl in ether/methanol (10/10 ml). This afforded 2.0 g (99% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09353107B2
Source datasetuspto-grants-2016_05
ORD IDord-2751e1991a37472ba054852e37732115
Source noteuspto-grants-2016_05