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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 972012Generated: October 27, 2026

Bisphenol A diglycidyl ether → 2,2-Bis{4-[2-hydroxy-3-(7,7,8,9,9-pentamethyl-2,4-dioxo-1,3,8-triazaspiro[4.5]dec-3-yl)propoxy]phenyl}propane

https://huagongshe.com/reaction/972012

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBisphenol A diglycidyl etherHCID 2286—
ReactantPotassium HydroxideHCID 14797—
Reactant7,7,8,9,9-Pentamethyl-1,3,8-triazaspiro[4.5]decane-2,4-dioneHCID 20481853—
SolventMethanolHCID 887—
Product2,2-Bis{4-[2-hydroxy-3-(7,7,8,9,9-pentamethyl-2,4-dioxo-1,3,8-triazaspiro[4.5]dec-3-yl)propoxy]phenyl}propaneHCID 20396780—

Reaction Steps

26.3 g of 7,7,8,9,9-pentamethyl-1,3,8-triazaspiro[4.5]decane-2,4-dione, 17.0 g of 2,2-bis[p-(2,3-epoxypropoxy)phenyl]propane and 0.5 g of potassium hydroxide were added to 200 ml of methanol, and the mixture was refluxed for 8 hours. After completion of the reaction, the mixture was allowed to cool and the crystals which precipitated were washed with methanol and then recrystallized from benzene to give Compound No. 2 in the form of white crystals melting at 241°-244° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04162246
Source datasetuspto-grants-1979_07
ORD IDord-fe543f9d15554ec8be3b7602a5cb5e74
Source noteuspto-grants-1979_07