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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 362736Generated: October 30, 2026

Hydrochloric Acid → HCID 131720059, compound

https://huagongshe.com/reaction/362736

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantWaterHCID 962—
Reactant1,4'-BipiperidineHCID 78607—
ReactantHCID 21200578HCID 21200578—
SolventDiethyl EtherHCID 3283—
SolventDimethylformamideHCID 6228—
ProductHCID 131720059HCID 131720059—

Reaction Conditions

Temperature70 °C

Reaction Steps

A mixture of 0.86 g of the compound obtained in step C of EXAMPLE 26 and 0.7 g of 4-(piperid-1-yl)-piperidine in 3 ml of DMF is heated at 70° C. for 4 hours 30 minutes. After cooling to RT, the reaction mixture is poured into water and extracted with AcOEt, the organic phase is washed with 1N NaOH solution and with saturated NaCl solution and dried over Na2SO4 and the solvent is evaporated off under vacuum. The residue is chromatographed on silica H using DCM and then a DCM/MeOH mixture (90/10; v/v) as the eluent. The product obtained is taken up with a saturated solution of hydrochloric acid in ether and the precipitate formed is wrung to give 0.49 g of the expected product. M.p.=260° C. (dec.).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05869663
Source datasetuspto-grants-1999_02
ORD IDord-f8128c5f862c4a90aca4273e4b74d4c3
Source noteuspto-grants-1999_02