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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1012962Generated: October 31, 2026

Hydrochloric Acid → 1-(4-Chloroplithalazin-1-yl)-N-methylpiperidin-4-amine dihydrochloride

https://huagongshe.com/reaction/1012962

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactanttert-Butyl 1-(4-chlorophthalazin-1-yl)piperidin-4-yl(methyl)carbamateHCID 58157124—
SolventMethanolHCID 887—
Product1-(4-Chloroplithalazin-1-yl)-N-methylpiperidin-4-amine dihydrochlorideHCID 86651282199.6%

Reaction Steps

Add hydrogen chloride (4.0 N in dioxane, 100 mL; 400 mmol) to a solution of tert-butyl 1-(4-chlorophthalazin-1-yl)piperidin-4-yl(methyl)carbamate (7.60 g; 100 equiv; 20.2 mmol) in methanol (100 mL). Stir at room temperature one hour. Remove the solvent under reduced pressure to obtain the title compound (7.05 g, 100%). ES/MS m/z 277.2 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07981892B2
Source datasetuspto-grants-2011_07
ORD IDord-07acd4738737454a8f69353d8f963555
Source noteuspto-grants-2011_07