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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 875249Generated: October 29, 2026

Hydrochloric Acid → 2-​Naphthalenamine, 1,​2,​3,​4-​tetrahydro-​5-​methoxy-​N-​propyl-​, hydrochloride (1:1)

https://huagongshe.com/reaction/875249

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant(2R)-1,2,3,4-Tetrahydro-5-methoxy-N-propyl-2-naphthalenamineHCID 10656511—
Product2-​Naphthalenamine, 1,​2,​3,​4-​tetrahydro-​5-​methoxy-​N-​propyl-​, hydrochloride (1:1)HCID 12581163—

Reaction Conditions

Temperature20 °C

Reaction Steps

Aqueous HCl 37% w:w (1.1 eq) is added dropwise under reflux for ˜5 min into the mixture obtained to precipitate the N-propyl MAT.HCl. The suspension is cooled down to 20° C. (Tramp=−20° C./h). The suspension is post-stirred at 20° C. for minimum 30 min and filtered. The cake is washed twice with EtOAc (2×1 vol.). The wet solid is dried under vacuum at 40° C. giving an off white solid. Yield: 95.0% from (III)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08981121B2
Source datasetuspto-grants-2015_03
ORD IDord-3028891c0712471197f502b6d952952c
Source noteuspto-grants-2015_03