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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 633836Generated: October 30, 2026

Hydrochloric Acid → HCID 67222672, compound

https://huagongshe.com/reaction/633836

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 178487801HCID 178487801—
SolventMethanolHCID 887—
ProductHCID 67222672HCID 67222672101.3%

Reaction Steps

A 2.0 N hydrochloric acid aqueous solution (5 mL) is added at room temperature to a stirred solution of 2-(tert-butyl-dimethyl-silanyloxymethyl)-8-methoxy-1,2-dihydro-3-oxa-5,9-diaza-cyclopenta[a]naphthalene (600 mg, 1.7 mmol, 1.0 eq) in methanol (20 mL). After 2 hours stirring at room temperature, solvent is removed, the residue is extracted with dichloromethane (3×30 mL) and water (30 mL) and the pH is adjusted to 8 by the addition of a saturated sodium carbonate aqueous solution. The combined organic layers are washed with brine, dried over sodium sulfate, filtered and concentrated to afford (8-methoxy-1,2-dihydro-3-oxa-5,9-diaza-cyclopenta[a]naphthalene-2-yl)-methanol as an off-white solid (400 mg, 99% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09321788B2
Source datasetuspto-grants-2016_04
ORD IDord-3c773f3839894651a680a9ba9ac0c034
Source noteuspto-grants-2016_04