Hexamethyldisiloxane → Methylphenethylpentamethyldisiloxane

HRID 1463524Notes

Reaction equation

HRID 1463524 reaction equation
CC1C=CC=CC=1[CH2:4][CH2:5][Si:6]([CH3:21])([CH3:20])[O:7][Si:8]([CH3:19])([CH3:18])[CH2:9][CH2:10][C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][C:12]=1C.C[Si](C)(C)O[Si](C)(C)C>>[CH3:4][CH2:5][Si:6]([CH3:21])([CH3:20])[O:7][Si:8]([CH2:9][CH2:10][C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1)([CH3:18])[CH3:19]

Participants

3

Reactant 2

HCID 24764HexamethyldisiloxaneHCID 190907011,3-Di(2-methylphenethyl)tetramethyldisiloxane

Product 1

HCID 86747730Methylphenethylpentamethyldisiloxane

Procedure

The following were charged to a 1 L roundbottom flask equipped with a stirrer and thermometer: 200 g 1,3-di(2-methylphenethyl)tetramethyldisiloxane as prepared in Example 3, 600 g hexamethyldisiloxane, and 5 g thoroughly dehydrated activated clay. This was followed by heating to 80° to 85° C. and stirring for 2 hours. The reaction mixture was then filtered and the filtrate was heated in vacuo to afford 170 g 2- (methylphenethylpentamethyldisiloxane.

Workup

  1. additionThe following were charged to a 1 L roundbottom flask
  2. customequipped with a stirrer
  3. temperatureby heating to 80° to 85° C.
  4. filtrationThe reaction mixture was then filtered
  5. temperaturethe filtrate was heated in vacuo

Sources & evidence

ORD record
ord-a193a865f9d64be98bab1215af7a157f
Source dataset
uspto-grants-1994_04
Patent number
US05300669

Reaction notes

Loading…