Triethylamine → Nonamethyltetrasiloxanyl 2-methylprop-2-enoate

HRID 16035

Reaction equation

HRID 16035 reaction equation
[CH3:1][Si:2]1([CH3:12])[O:7][Si:6]([CH3:9])([CH3:8])[O:5][Si:4]([CH3:11])([CH3:10])[O:3]1.[C:13]([O:18][Si:19](C)([CH3:21])[CH3:20])(=[O:17])[C:14]([CH3:16])=[CH2:15].[CH3:23]OC1C=CC(O)=CC=1.C(N(CC)CC)C>C1(C)C=CC=CC=1.[Cl-].[Zn+2].[Cl-]>[CH3:23][Si:2]([CH3:12])([CH3:1])[O:3][Si:4]([CH3:11])([CH3:10])[O:5][Si:6]([CH3:9])([CH3:8])[O:7][Si:19]([CH3:21])([CH3:20])[O:18][C:13](=[O:17])[C:14]([CH3:16])=[CH2:15]

Participants

7

Reactant 4

HCID 8471TriethylamineHCID 90154-MethoxyphenolHCID 10914HexamethylcyclotrisiloxaneHCID 27338392-Propenoic acid, 2-methyl-, trimethylsilyl ester

Product 1

HCID 12991985Nonamethyltetrasiloxanyl 2-methylprop-2-enoate

Reagents, catalysts & solvents 2

HCID 3007855ZincchlorideCatalystHCID 1140TolueneSolvent

Procedure

50 g of hexamethylcyclotrisiloxane, 35.6 g of trimethylsilyl methacrylate, 2.5 g of zinc chloride and 0.4 g of 4-methoxy phenol were dissolved in 50 ml of toluene. After 11 h at 100° C., the mixture was allowed to cool until room temperature, 40 ml of triethylamine were then added and the salts were filtered. After evaporation of the solvent, distillation under reduced pressure (0.3 mbar, 80° C.) furnished pure nonamethyl-1-methacryloyloxy-tetrasiloxane.

Workup

  1. filtrationthe salts were filtered
  2. customAfter evaporation of the solvent, distillation under reduced pressure (0.3 mbar, 80° C.)

Sources & evidence

ORD record
ord-940987a91602489c8ac2c7785e3142dd
Source dataset
uspto-grants-2010_06
Patent number
US07736634B2

Linked notes

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