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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1732071Generated: October 30, 2026

Hydroxyamine hydrochloride → HCID 86741128, compound

https://huagongshe.com/reaction/1732071

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydroxyamine hydrochlorideHCID 443297—
ReactantHCID 13749130HCID 13749130—
SolventPyridineHCID 1049—
ProductHCID 86741128HCID 8674112898.2%

Reaction Steps

A solution of 6,7,8,9-tetrahydro-3-methoxy-10-methylpyrido[1,2-a]indol-9-one (2.29 g, 10 mmol) and hydroxylamine hydrochloride (1.39 g, 20 mmol) in dry pyridine (40 mL) was refluxed for 2 hours. The reaction mixture was concentrated to 10% of its original volume and distilled water (80 mL) was added. The organic product was extracted with ether (3×60 mL). The combined organic layers were washed with water (100 mL), 5% hydrochloric acid (50 mL), and 10% sodium bicarbonate (50 mL). The separated organic layer was dried over MgSO4, filtered, and evaporated. The residue was recrystallized from methanol/water to afford 2.4 g (98%) of the title compound as gray microcrystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04624954
Source datasetuspto-grants-1986_11
ORD IDord-b6694d89f6844b22b724ccdd1faaeef7
Source noteuspto-grants-1986_11