Methacrylic Acid → Nonamethyltetrasiloxanyl 2-methylprop-2-enoate

HRID 1244865Notes

Reaction equation

HRID 1244865 reaction equation
[CH3:1][Si:2]([CH3:20])([CH3:19])[O:3][Si:4]([CH3:18])([CH3:17])[O:5][Si:6]([CH3:16])([CH3:15])[O:7][Si:8]([CH3:14])([CH3:13])OC(=O)C.[C:21]([OH:26])(=[O:25])[C:22]([CH3:24])=[CH2:23]>>[CH3:1][Si:2]([CH3:19])([CH3:20])[O:3][Si:4]([CH3:18])([CH3:17])[O:5][Si:6]([CH3:16])([CH3:15])[O:7][Si:8]([CH3:13])([CH3:14])[O:25][C:21](=[O:26])[C:22]([CH3:24])=[CH2:23]

Participants

3

Reactant 2

HCID 4093Methacrylic AcidHCID 15750682Nonamethyl-1-acetoxy-tetrasiloxane

Product 1

HCID 12991985Nonamethyltetrasiloxanyl 2-methylprop-2-enoate

Procedure

5 g of nonamethyl-1-acetoxy-tetrasiloxane prepared as described in reference example of EP-0839869 and 2.31 g of commercial methacrylic acid (ATOFINA Norsocryl® MAA) are mixed at room temperature. Acetic acid is then distilled under reduced pressure (45° C./13 hPa) to afford nonamethyl-1-methacryloyloxy-tetrasiloxane.

Workup

  1. additionare mixed at room temperature
  2. distillationAcetic acid is then distilled under reduced pressure (45° C./13 hPa)

Sources & evidence

ORD record
ord-84920894ffa04247a004fab177cd4699
Source dataset
uspto-grants-2006_10
Patent number
US07122692B2

Reaction notes

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