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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 566966Generated: October 25, 2026

1H,3H-Naphtho(1,8-cd)pyran-1,3-dione, 6-bromo- → HCID 22624038, compound

https://huagongshe.com/reaction/566966

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1H,3H-Naphtho(1,8-cd)pyran-1,3-dione, 6-bromo-HCID 66493—
ReactantBenzyloxyamine hydrochlorideHCID 102312—
SolventPyridineHCID 1049—
ProductHCID 22624038HCID 2262403887.2%

Reaction Steps

O-Benzyl hydroxylamine hydrochloride (2.0 g, 12.5 mmol) and 4-bromo-1,8-naphthalic anhydride (2.9 g, 10.5 mmol) were reacted in pyridine (50 mL) following the procedure of Example D to give 3.5 g of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06177423B1
Source datasetuspto-grants-2001_01
ORD IDord-3aef29a4c6f249d3aa331bf3e433efb1
Source noteuspto-grants-2001_01