Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 480995Generated: October 26, 2026

Phenol → 2,7-Dibromo-9-(2,5-dimethylphenyl)-9-(4-hydroxyphenyl)fluorene

https://huagongshe.com/reaction/480995

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhenolHCID 996—
ReactantSulfuric AcidHCID 1118—
Reactant(+-)-2-Mercaptopropionic acidHCID 62326—
Reactant2,7-Dibromo-9-(2,5-dimethylphenyl)-9H-fluoren-9-OLHCID 18766843—
SolventMethanolHCID 887—
SolventWaterHCID 962—
SolventTolueneHCID 1140—
Product2,7-Dibromo-9-(2,5-dimethylphenyl)-9-(4-hydroxyphenyl)fluoreneHCID 18766847—

Reaction Conditions

Temperature60 °C

Reaction Steps

9.5 g of phenol were mixed with 22.2 g of 2,7-dibromo-9-(2,5-dimethylphenyl)fluoren-9-ol, 25 ml of toluene and 0.1 ml of mercapto-propionic acid. 5 ml of concentrated sulfuric acid were subsequently added dropwise. The batch was then stirred at 60° C. for about 2 hours, and finally 100 ml of MeOH and 100 ml of water were added. The solid was filtered off with suction and further purified by stirring with ethanol.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06653438B1
Source datasetuspto-grants-2003_11
ORD IDord-4e3ca63617244fcb8644a6494c84f657
Source noteuspto-grants-2003_11