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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 33152Generated: October 26, 2026

Piperazine → 6-Nitro-2-piperazin-1-yl-1,3-benzothiazole

https://huagongshe.com/reaction/33152

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperazineHCID 4837—
ReactantTriethylamineHCID 8471—
Reactant2-Chloro-6-nitrobenzothiazoleHCID 75476—
SolventTetrahydrofuranHCID 8028—
Product6-Nitro-2-piperazin-1-yl-1,3-benzothiazoleHCID 766012—

Reaction Conditions

Temperature160 °C

Reaction Steps

A mixture of 1.40 mmol 2-chloro-6-nitrobenzothiazole (CA=[2407-11-6]), 4.19 mmol of piperazine and 4.19 mmol of triethylamine in 5 ml of tetrahydrofuran in a sealed tube was heated at 160° C. for 10 min under microwave irradiation. The reaction mixture was concentrated, and the residue was purified by chromatography (SiO2, methanol/dichloromethane) to yield the title compound as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07429585B2
Source datasetuspto-grants-2008_09
ORD IDord-770bc5918640493593aa98c45636360b
Source noteuspto-grants-2008_09