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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1925246Generated: October 28, 2026

Hydrochloric Acid → Hydrochloric Acid

https://huagongshe.com/reaction/1925246

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantTris(1,1-dimethylethyl)phosphineHCID 83681—
ReactantLithium HexamethyldisilazideHCID 2733832—
Reactant2-(6,7-Dimethoxy-4-quinolyloxy)-6-bromo-1-fluoronaphthaleneHCID 67520564—
CatalystBis(dibenzylideneacetone)palladiumHCID 9811564—
SolventTolueneHCID 1140—
ProductHydrochloric AcidHCID 313—
Product6-(6,7-Dimethoxy-4-quinolyloxy)-5-fluoro-2-naphthylamineHCID 67520360—

Reaction Steps

A mixture of 2-(6,7-dimethoxy-4-quinolyloxy)-6-bromo-1-fluoronaphthalene (Step b, 1.7 g, 4.0 mmol), Pd2(dba)3 (183 mg, 0.2 mmol, Aldrich) and P(t-Bu)3 (40 mg, 0.2 mmol, Aldrich) in a two-necked round-bottom flask was degassed under vacuum and refilled with N2. Under N2, dry toluene and LiHMDS (5 mL, 1M in THF, 5.0 mmol, Aldrich) was added to the mixture via syringe. The reaction was stirred at RT under N2 for 16 h. To the reaction was added 1N aqueous HCl (10 mL) and a yellow precipitate was collected by filtration. The solid was washed with 10 mL of water and dried in vacuo at 50° C. for 24 h to give title compound as HCl salt in the form of yellow solid. MS (ESI, pos. ion) m/z: 365 (M+1). Mass Calc'd for C21H17FN2O3: 364.12.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08178557B2
Source datasetuspto-grants-2012_05
ORD IDord-ecc294d356224557b99b4a48bfb28463
Source noteuspto-grants-2012_05