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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 979292Generated: November 1, 2026

Quinone → 2,7-Dimethyl-phenothiazone

https://huagongshe.com/reaction/979292

Reaction equation

Participants

RoleNameHCIDCharge
ReactantQuinoneHCID 4650—
ReactantDichloromethaneHCID 6344—
ReactantEthyl AcetateHCID 8857—
Reactant2-Amino-3-methoxybenzene-1-thiolHCID 12631859—
Product2,7-Dimethyl-phenothiazoneHCID 369391—

Reaction Steps

Following the procedure described in Example 10 but substituting 2-amino-5-methylthiophenol for 2-amino-3-methoxythiophenol and substituting 2-methyl-p-benzoquinone for p-benzoquinone, a mixture of the title compounds were obtained. Chromatography on silica gel eluting with 10% EtOAc in CH2Cl2 afforded firstly 2,7-dimethyl-3H-phenothiazin-3-one, m.p. 177° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04667032
Source datasetuspto-grants-1987_05
ORD IDord-a392b68cc4f34487a40933be0fa805fe
Source noteuspto-grants-1987_05