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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 534919Generated: October 31, 2026

Hydrochloric Acid → HCID 178440810, compound

https://huagongshe.com/reaction/534919

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium AzideHCID 33557—
Reactant3-(4-(2-Tert-butylphenyl)piperazin-1-yl)-3-oxopropanenitrileHCID 66751163—
CatalystZinc bromideHCID 10421208—
SolventWaterHCID 962—
ProductHCID 178440810HCID 17844081027%

Reaction Conditions

Temperature150 °C

Reaction Steps

A stirred suspension of 3-(4-(2-tert-butylphenyl)piperazin-1-yl)-3-oxopropanenitrile (0.060 g, 0.21 mmol), sodium azide (0.015 g, 0.23 mmol) and zinc bromide (0.055 g, 0.21 mmol) in water (1.0 mL) was heated at 150° C. for 24 h. After this time, the reaction mixture was cooled to room temperature, acidified with 1.0 M hydrochloric acid to pH 1-2 and extracted with ethyl acetate (3×15 mL). The combined organics were washed with water, dried (Na2SO4), filtered and concentrated under reduced pressure. The residue was triturated with acetonitrile to provide 1-(4-(2-tert-butylphenyl)piperazin-1-yl)-2-(1H-tetrazol-5-yl)ethanone (0.018 g, 27%) as an off-white solid, mp 236-237° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08853215B2
Source datasetuspto-grants-2014_10
ORD IDord-8f4cb3c599a148fd9a7ad27f2c0c0fc1
Source noteuspto-grants-2014_10