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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1591872Generated: October 30, 2026

Hydrochloric Acid → HCID 66939006, compound

https://huagongshe.com/reaction/1591872

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantBenzophenone imineHCID 136809—
Reactant2-(Di-tert-butylphosphino)biphenylHCID 2734215—
ReactantSodium t-butoxideHCID 23676156—
ReactantHCID 66938866HCID 66938866—
CatalystBis(dibenzylideneacetone)palladiumHCID 9811564—
SolventMethanolHCID 887—
SolventTolueneHCID 1140—
ProductHCID 66939006HCID 6693900611.4%

Reaction Steps

Mix 1-methyl-4-(N-(2-fluoro-3-chlorophenyl)ethylamino)piperidine (Preparation 26) (0.367 g), benzophenone imine (0.295 g), Pd2(dba)3 (50 mg), 2-(di-t-butylphosphino)biphenyl (32 mg), and sodium t-butoxide (0.182 g) in toluene (10 mL) and heat at reflux for three days. Dilute with methanol (5 mL), 30 minutes after adding 2 mL of 5N HCl, load on a SCX column (10 g), wash with methanol, elute the product with 2M NH3 in methanol, evaporate and purify on a silica gel column (35 g), using a gradient of dichloromethane-2M NH3 in methanol to give 39 mg of the title compound: mass spectrum (electric spray) m/z=252 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07291632B2
Source datasetuspto-grants-2007_11
ORD IDord-c1d76863c1d044e58501db7c002f00df
Source noteuspto-grants-2007_11