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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 972017Generated: October 27, 2026

Potassium Hydroxide → Bis[2-hydroxy-3-(7,7,8,9,9-pentamethyl-2,4-dioxo-1,3,8-triazaspiro[4.5]dec-3-yl)propyl]phthalate

https://huagongshe.com/reaction/972017

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium HydroxideHCID 14797—
Reactant1,2-Bis(2-oxiranylmethyl) 1,2-benzenedicarboxylateHCID 62629—
Reactant7,7,8,9,9-Pentamethyl-1,3,8-triazaspiro[4.5]decane-2,4-dioneHCID 20481853—
SolventDimethylformamideHCID 6228—
ProductBis[2-hydroxy-3-(7,7,8,9,9-pentamethyl-2,4-dioxo-1,3,8-triazaspiro[4.5]dec-3-yl)propyl]phthalateHCID 86736589—

Reaction Steps

24.0 g of 7,7,8,9,9-pentamethyl-1,3,8-triazaspiro[4.5]decane-2,4-dione, 12.0 g of bis(2,3-epoxypropyl)phthalate and 0.5 g of potassium hydroxide were reacted in 200 ml of N,N-dimethylformamide, following substantially the same procedure as in Example 1. The desired Compound No. 130 was obtained in the form of a white powder, having an Rf value of 0.47 on thin-layer chromatography on silica gel using a 8:1:1:1 by volume mixture of ethyl acetate, benzene, ethanol and triethylamine as developing solvent.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04162246
Source datasetuspto-grants-1979_07
ORD IDord-13fb8b2cf419456bb43cc66ff60a58d0
Source noteuspto-grants-1979_07