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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1589420Generated: November 3, 2026

Water → Indapamide

https://huagongshe.com/reaction/1589420

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPhosphoric AcidHCID 1004—
Reactant1-Allyl-1-phenyl-2-(3-sulfamoyl-4-chlorobenzoyl)-hydrazineHCID 15571502—
ProductIndapamideHCID 3702—

Reaction Steps

A mixture of 1-allyl-1-phenyl-2-(3-sulfamoyl-4-chlorobenzoyl)-hydrazine (36.6g, 0.1 mole) and orthophosphoric acid, 85% (100 ml) was stirred at 60° for a period of 4 hours. Dilution with water gave crude 1-(4-chloro-3-sulfamoylbenzamido)-2-methylindoline which was purified by recrystallization from isopropanol-n-hexane (60:40).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04570001
Source datasetuspto-grants-1986_02
ORD IDord-ec1c73e105054305b6fcb2bb7850f3bb
Source noteuspto-grants-1986_02