ChemicalBook CAS DataBase List 2,2-BIS[4-(2-HYDROXY-3-METHACRYLOXYPROPOXY)PHENYL]PROPANE

2,2-BIS[4-(2-HYDROXY-3-METHACRYLOXYPROPOXY)PHENYL]PROPANE synthesis

5synthesis methods

Product Name:2,2-BIS[4-(2-HYDROXY-3-METHACRYLOXYPROPOXY)PHENYL]PROPANE
CAS Number:1565-94-2
Molecular formula:C29H36O8
Molecular Weight:512.59

79-41-4 Synthesis

79-41-4
545 suppliers
$14.00/5g

1675-54-3 Synthesis

1675-54-3
215 suppliers
$9.00/25g

2,2-BIS[4-(2-HYDROXY-3-METHACRYLOXYPROPOXY)PHENYL]PROPANE

1565-94-2
114 suppliers
$40.00/10 g

Yield:-

Reaction Conditions:

Stage #1:poly(methacrylic acid);diphenylolpropane diglycidyl ether with 2,6-di-tert-butyl-4-methyl-phenol at 105 - 108; for 2.25 h;
Stage #2: with N,N'-dimethylbenzylamine at 105; for 21 h;
Stage #3: with triethyleneglycol dimethacrylate

Steps:

2 Preparation of Bisphenol A diglycidyl methacrylate (Bis-GMA)
Preparation of Bisphenol A diglycidyl methacrylate (Bis-GMA)Components:EPONTM 828 diepoxide 549.8 gramsMethacrylic Acid 248.9 gramsBHT (2,6-di-tert-butyl-4-methylphenol) 0.8 gramsN-Benzyldimethylamine 0.8 gramsTEGDMA 199.7 grams[00104j The EPON 828 diepoxide and BHT were charged to a 2 liter flask, equipped with a stirrer, a gas inlet, a thermocouple, and a condenser and heated to 108°C with ansparge. With the contents of the flask at 108°C, the methacrylic acid was addeddropwise into the batch with an addition funnel over the course of two hours and the temperature was maintained at 105°C throughout the addition. After the addition of the methacrylic acid was complete, the batch was held at temperature for 15 minutes, then the N-benzyldimethylamine was added. The batch was then held at 105°C for about 11.5 hours, at which point the acid value had reached 13 mg KOH/gram. At this point, anadditional 0.8 grams of N-benzyldimethylamine and 0.8 grams of BHT were added to the batch and it was held at 105°C for an additional 9.5 hours after which the acid value was 6.7 mg of KOH/gram. The TEGDMA was then added to the flask and the contents were cooled and poured into a container.

References:

VALSPAR SOURCING, INC.;NIEDERST, Jeffrey;EVANS, Richard H.;O'BRIEN, Robert M.;ROMAGNOLI, Kevin;CAVALLIN, Carl;KILLILEA, T. Howard;VON MAIER, Mark S. WO2014/25406, 2014, A1 Location in patent:Paragraph 00104

FullText

80-05-7 Synthesis