Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2050191Generated: October 30, 2026

Hydrochloric Acid → HCID 20342255, compound

https://huagongshe.com/reaction/2050191

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPotassium CyanideHCID 9032—
Reactant1,4-Dibenzylpiperazine-2-carbaldehydeHCID 15480999—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
ProductHCID 20342255HCID 20342255100.4%

Reaction Steps

To a solution of 5.2 g of crude 1,4-dibenzyl-2-formylpiperazine in a mixture of 30 ml of tetrahydrofuran and 10 ml of water are added 2.2 g (33.8 mmoles) of potassium cyanide and 3.4 ml of concentrated hydrochloric acid under ice-cooling, and the mixture is stirred for 30 minutes, mixed with water and extracted with chloroform. The extract is washed with water, dried over magnesium sulfate and evaporated under reduced pressure to yield 5.70 g of crude oily 2-hydroxy-2-(1,4-dibenzylpiperazin-2-yl)acetonitrile.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04200628
Source datasetuspto-grants-1980_04
ORD IDord-b03f66c95b504323a43b7d432ae7cc7f
Source noteuspto-grants-1980_04