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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 54453Generated: November 2, 2026

Ethanol → HCID 19958902, compound

https://huagongshe.com/reaction/54453

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantSodium borohydrideHCID 4311764—
Reactant9-(3-bromo-4-fluorophenyl)-3,4,6,7,9,10-hexahydro-1,8(2H,5H)-acridinedioneHCID 19958911—
SolventPyridineHCID 1049—
ProductHCID 19958902HCID 1995890263.4%

Reaction Conditions

Temperature70 °C

Reaction Steps

A mixture of 9-(3-bromo-4-fluorophenyl)-3,4,6,7,9,10-hexahydro-1,8(2H,5H)-acridinedione (1.8 g), sodium borohydride (1.74 g), ethanol (40 mL) and pyridine (14 mL) was heated at 70° C. for three and one half hours. The solvent was removed, the residue partitioned between water and ethyl acetate, the organic layer dried and the solvent removed. Chromatography (methylene chloride/ethyl acetate; 7/3) gave the title compound (1.1 g), as a yellow solid, mp 254°-257° C.; NMR: 1.41-1.51 (m,3, CH2), 1.60-1.88 (m,5, CH2), 2.03-2.13 (m,4, CH2), 2.38-2.44 (m,2, CH2), 4.18 (s,1, CH), 7.13-7.24 (m,2, Ar), 7.38 (dd,1, J=6.9, 2.0, Ar), 8.45 (s,1, NH); (CI, CH4) MS: m/z=378(M+1). Analysis for C19H19FBr: Calculated: C, 60.65; H, 5.09; N, 3.72; Found: C, 60.68; H, 5.09; N, 3.65.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05622964
Source datasetuspto-grants-1997_04
ORD IDord-5d7068a8a100414b8fd3e2d8b8f3ae28
Source noteuspto-grants-1997_04