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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1601929Generated: October 31, 2026

Hydrochloric Acid → HCID 131720060, compound

https://huagongshe.com/reaction/1601929

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantWaterHCID 962—
Reactant1,4'-BipiperidineHCID 78607—
ReactantHCID 21200564HCID 21200564—
SolventDiethyl EtherHCID 3283—
SolventDimethylformamideHCID 6228—
ProductHCID 131720060HCID 131720060—

Reaction Conditions

Temperature70 °C

Reaction Steps

A mixture of 1.3 g of the compound obtained in step C of EXAMPLE 71 and 1.1 g of 4-(piperid-1-yl)piperidine in 4 ml of DMF is heated at 70° C. for 4 hours. After cooling to RT, the reaction mixture is poured into iced water and extracted with AcOEt, the organic phase is washed with 1 N 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.=270° C. (dec.).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05977359
Source datasetuspto-grants-1999_11
ORD IDord-a33bce4292704203ba1d7fabff611120
Source noteuspto-grants-1999_11