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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 616940Generated: October 30, 2026

P-Toluenesulfonylhydrazide → HCID 178490627, compound

https://huagongshe.com/reaction/616940

Reaction equation

Participants

RoleNameHCIDCharge
ReactantP-ToluenesulfonylhydrazideHCID 15303—
Reactant4-Chloro-7-methoxy-1H-indole-2,3-dioneHCID 12511940—
SolventMethanolHCID 887—
ProductHCID 178490627HCID 178490627—

Reaction Steps

25.0 g (0.118 mole) of 4-chloro-7-methoxyisatin is taken up in 500 ml CH3OH at 60° and treated portionwise with 23.8 g of 97% p-toluenesulfonylhydrazine (≅ 23.1 g or 1.05 equivalents). The mixture is kept at ~60° for 15 minutes and then stirred at room temperature for 20 hours.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04076818
Source datasetuspto-grants-1978_02
ORD IDord-5ef8c78b71854817ba7fdac88ba491d5
Source noteuspto-grants-1978_02