Process for the purification of Ropinirole hydrochloride

Process for the purification of Ropinirole hydrochloride

An improved process is described for the purification of ropinirole hydrochloride. The process includes (i) dissolving ropinirole hydrochloride in water; (ii) treating the solution obtained in step (i) with sodium dithionate and charcoal; (iii) treating the filtrate obtained in step (ii) with water...

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Hauptverfasser: ACHARYA HITARTH HARSHENDU, SHANISHCHARA ASHOK PRATAPRAI, SHAH TRUSHAR RAJANIKANT, DESHPANDE PANDURANG BALWANT, LUTHRA PARVEN KUMAR
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CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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creator ACHARYA HITARTH HARSHENDU
SHANISHCHARA ASHOK PRATAPRAI
SHAH TRUSHAR RAJANIKANT
DESHPANDE PANDURANG BALWANT
LUTHRA PARVEN KUMAR
description An improved process is described for the purification of ropinirole hydrochloride. The process includes (i) dissolving ropinirole hydrochloride in water; (ii) treating the solution obtained in step (i) with sodium dithionate and charcoal; (iii) treating the filtrate obtained in step (ii) with water immiscible solvent and base and isolating the free base; and (iv) treating the free base obtained in step (iii) with ethanolic HCl to give ropinirole hydrochloride.
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METALLURGY
ORGANIC CHEMISTRY
title Process for the purification of Ropinirole hydrochloride
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