Bisphenol A → 4-tert-Butylphenol

HRID 1778939Notes

Reaction equation

HRID 1778939 reaction equation
[OH-].[Na+].[OH:3][C:4]1[CH:9]=[CH:8][C:7]([C:10]([C:13]2C=CC(O)=CC=2)([CH3:12])[CH3:11])=[CH:6][CH:5]=1>O>[C:10]([C:7]1[CH:6]=[CH:5][C:4]([OH:3])=[CH:9][CH:8]=1)([CH3:13])([CH3:11])[CH3:12]

Participants

4

Reactant 2

HCID 6623Bisphenol AHCID 14798Sodium Hydroxide

Product 1

HCID 73934-tert-ButylphenolYield 2.8%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

1784 g of water, 385 g of NaOH, and 232 g of bisphenol A (BPA) were added to a polymerization reactor and were then dissolved while mixing under a N2 atmosphere. 4.3 g of p-tert butylphenol (PTBP) and 13.1 g of the siloxane compound obtained according to each of Examples 1 and 2, and Comparative Examples 1 and 2, which was dissolved in methylene chloride (MC), were added thereto. Subsequently, 128 g of triphosgene (TPG) was dissolved in MC, and then a dissolved TPG solution was added thereto and reacted therewith for 1 hour while maintaining pH of the TPG solution at 11 or more. After 10 minutes, 46 g of triethylamine (TEA) was added thereto and thereby a coupling reaction occurred.

Workup

  1. dissolutionwere then dissolved
  2. additionwhile mixing under a N2 atmosphere

Sources & evidence

ORD record
ord-f90ffd9025294cc8b4083fdebbe2db53
Source dataset
uspto-grants-2016_02
Patent number
US09267034B2

Reaction notes

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