
2-(Perfluorohexyl)ethyl methacrylate synthesis
- Product Name:2-(Perfluorohexyl)ethyl methacrylate
- CAS Number:2144-53-8
- Molecular formula:C12H9F13O2
- Molecular Weight:432.18
Yield:2144-53-8 94%
Reaction Conditions:
with hydroquinone;toluene-4-sulfonic acid in toluene at 115; for 5 h;
Steps:
1 Synthesis of 3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctane 2-methyl-2-properiic acid ester
Toluene (2 L), 3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctane-1-ol (2.18 kg, 6.0 mol), 2-methyl-2-propenic acid (methacrylic acid) (567 g, 6.6 mol) and 1,4-dihydroxybenzene (hydroquinone) (6.59 g, 60 mmol) were added and then p-toluenesulfonic acid monohydrate (148.06 g, 0.78 mol) was added thereto. The obtained solution was heated and subjected to reflux dehydration at 115° C. for 5 hours. After reflux dehydration, the obtained reaction solution was cooled to around room temperature and added with triethylamine (151.5 g, 1.50 mol) was added thereto, stirred for 0.5 hours and then added with 150 g of silica gel. After stirring for 0.5 hours, the silica gel was filtered off and the obtained filtrate was added with 1,4-dihydroxybenzene (hydroquinone) (1.32 g, 12.0 mmol), and the solvent was removed in vacuum distillation and then was purified in distillation to obtain 3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctane 2-methyl-2-propenic acid ester (2.44 kg, 94%).
References:
US2010/324314,2010,A1 Location in patent:Page/Page column 15

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