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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 866722Generated: October 25, 2026

Water → Bisphenol E

https://huagongshe.com/reaction/866722

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantTetralinHCID 8404—
Reactant4,4'-(1,2-Ethanediyl)bis(2,6-bis(1,1-dimethylethyl)phenolHCID 164847—
Solventp-Toluenesulfonic acidHCID 6101—
ProductBisphenol EHCID 60811697%

Reaction Steps

A solution of 5.0 grams (0.011 mole) of 1,2-bis(3,5-di-t-butyl-4-hydroxyphenyl)ethane dissolved in 30 milliliters of tetralin containing 0.2 gram (0.0012 mole) of p-toluensulfonic acid was heated to reflux for a total of 3 hours. The reaction mixture was cooled and poured into 50 milliliters of water. The precipitated solid was collected by suction filtration and recrystallized from ethanol to yield 2.3 grams (97 percent) of bisphenol E, melting point 199°-200° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04101391
Source datasetuspto-grants-1978_07
ORD IDord-9f1db7b4ffdc4dc9b504e7f12c195db1
Source noteuspto-grants-1978_07