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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2270508Generated: October 30, 2026

Sodium Hydroxide → HCID 67749524, compound

https://huagongshe.com/reaction/2270508

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
ReactantHCID 67749549HCID 67749549—
SolventHydrogen BromideHCID 260—
ProductHCID 67749524HCID 6774952464%

Reaction Steps

A solution of 0.57 g (2.0 mmol) methoxy-amine cis(±)-1,2,3,4-tetrahydro-8-methoxy-N,1-di-propyl-2-naphthalenamine hydrochloride in 10 mL 48% hydrobromic acid was refluxed (bath temperature, 120° C.) for eight hours. TLC analysis showed no starting material remaining. The mixture was cooled to room temperature, treated with 20% sodium hydroxide to pH 7-8, and extracted with ethyl acetate. The organic layer was washed with brine, dried (MgSO4), filtered, and concentrated in vacuo. The oil was converted to HCl-salt with excess anhydrous hydrochloric acid and recrystallized from ethyl acetate to give 0.36 g (64%) of pure title compound as a white solid: m.p. 244°-245° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06331636B1
Source datasetuspto-grants-2001_12
ORD IDord-852735b805744b889ef94f259ac49ec4
Source noteuspto-grants-2001_12