Toluene 2,4-Diisocyanate → Bis(2-hydroxyphenyl)methane

HRID 245132

Reaction equation

HRID 245132 reaction equation
[CH:1]1[CH:6]=[C:5]([CH2:7][C:8]2[C:13]([OH:14])=[CH:12][CH:11]=[CH:10][CH:9]=2)[C:4]([OH:15])=[CH:3][CH:2]=1.CC1C(=CC(=CC=1)N=C=O)[N:19]=[C:20]=[O:21]>[Br-].C([N+](CCCC)(CCCC)CCCC)CCC>[N-:19]=[C:20]=[O:21].[CH:10]1[CH:9]=[C:8]([CH2:7][C:5]2[C:4]([OH:15])=[CH:3][CH:2]=[CH:1][CH:6]=2)[C:13]([OH:14])=[CH:12][CH:11]=1

Participants

5

Reactant 2

HCID 11443Toluene 2,4-DiisocyanateHCID 75575Bis(2-hydroxyphenyl)methane

Product 2

HCID 75575Bis(2-hydroxyphenyl)methaneHCID 105034Isocyanate

Reagents, catalysts & solvents 1

HCID 74236Tetrabutylammonium BromideCatalyst

Conditions

Temperature
175 °C

Procedure

Zero point zero five part by mass of tetrabutylammonium bromide was added to 100 parts by mass of a bisphenol F type epoxy resin (Epiclon 830), and with stirring the mixture was heated to 175° C. Then, 20 parts by mass of toluene diisocyanate were supplied, taking 3 hours, and the mixture was further stirred at 175° C. for 4 hours, to obtain an isocyanate modification product of the bisphenol F type epoxy resin.

Workup

  1. stirringthe mixture was further stirred at 175° C. for 4 hours

Sources & evidence

ORD record
ord-d6cc945dbb40411998a0bbb6c2b28f68
Source dataset
uspto-grants-2014_02
Patent number
US08658736B2

Linked notes

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