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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 582884Generated: October 30, 2026

1-(2-Pyridyl)piperazine → 6-Methoxy-3-[1-(2-pyridyl)piperazinyl]-1,2-benzisoxazole

https://huagongshe.com/reaction/582884

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-(2-Pyridyl)piperazineHCID 94459—
Reactant3-Chloro-6-methoxy-1,2-benzoxazoleHCID 15816924—
SolventMethanolHCID 887—
Product6-Methoxy-3-[1-(2-pyridyl)piperazinyl]-1,2-benzisoxazoleHCID 5370290734.5%

Reaction Conditions

Temperature140 °C

Reaction Steps

A sealed tube was charged with 3-chloro-6-methoxy-1,2-benzisoxazole (0.25 g, 1.4 mmol) and 1-(2-pyridyl)piperazine (0.67 g, 4 mmol) and heated to 140° C. overnight. The reaction was cooled to room temperature, diluted with methanol, and concentrated in vacuo. The material was flash chromatographed (silica gel) eluting with CH2Cl2. The material was further purified through recrystallization from 1,2-dichloroethane/pet. ether to afford 0.15 g of the product, m.p.=123-124° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05925766
Source datasetuspto-grants-1999_07
ORD IDord-d74224db9bb742969ad8399d91678c6d
Source noteuspto-grants-1999_07