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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1636982Generated: October 31, 2026

Xanthene → Xanthone

https://huagongshe.com/reaction/1636982

Reaction equation

Participants

RoleNameHCIDCharge
ReactantXantheneHCID 7107—
ReactantN-HydroxyphthalimideHCID 10665—
SolventBenzonitrileHCID 7505—
ProductXanthoneHCID 702099%

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of 2 mmole of xanthene, 10 mole % of N-hydroxyphthalimide relative to xanthene, and 5 ml of benzonitrile was stirred for 20 hours at 100° C. under an oxygen atmosphere. The products in the reaction mixture were analyzed by gas chromatography, and, as a result, 9-oxoxanthene (yield not less than 99%) was formed.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06037477
Source datasetuspto-grants-2000_03
ORD IDord-03dc0090973a486b8d6b2d8fc9795127
Source noteuspto-grants-2000_03