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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2052576Generated: October 31, 2026

7-Methylisatin → HCID 20351109, compound

https://huagongshe.com/reaction/2052576

Reaction equation

Participants

RoleNameHCIDCharge
Reactant7-MethylisatinHCID 14313—
ReactantPhosphorus pentachlorideHCID 24819—
ProductHCID 20351109HCID 20351109—

Reaction Steps

By reacting 7-methylisatin with phosphorous pentachloride, there is obtained 7-methylisatin chloride which, on reaction with 5,6,7-trichloro 3(2H)-thianaphthenone, yields 5,6,7-trichloro-7'-methyl-2'-indole-2-thianaphthene indigo, which also is useful as a dyestuff.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04186132
Source datasetuspto-grants-1980_01
ORD IDord-c5a0d80ffe2b48fabf6a20ec506eaf9a
Source noteuspto-grants-1980_01