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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1448911Generated: November 1, 2026

7-Methylisatin → HCID 20351109, compound

https://huagongshe.com/reaction/1448911

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)-thianaphtheneone, 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 numberUS04188325
Source datasetuspto-grants-1980_02
ORD IDord-60775eed41774818b913618f89c8da82
Source noteuspto-grants-1980_02