HCID 178478937, compound → HCID 178478938, compound

HRID 857846Notes

Reaction equation

HRID 857846 reaction equation
[Cl-].[Cl-].[Cl:3][CH2:4][SiH:5]=[Zr+2:6]([CH:12]1[CH:16]=[CH:15][CH:14]=[CH:13]1)[CH:7]1[CH:11]=[CH:10][CH:9]=[CH:8]1>C1(C)C=CC=CC=1>[Cl:3][CH2:4][SiH:5]=[Zr:6]([CH:7]1[CH:8]=[CH:9][CH:10]=[CH:11]1)[CH:12]1[CH:16]=[CH:15][CH:14]=[CH:13]1

Participants

3

Reactant 1

HCID 178478937HCID 178478937, compound

Product 1

HCID 178478938HCID 178478938, compound

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent2×

Procedure

In a flask of 250 ml of capacity it was weighed 5 g of silica modified with MAO commercialized by Witco with a 24.7% weight of Al and it was added 120 ml of toluene. Then, it was added a solution in toluene of (chloromethylsilandiyl)bis(cyclopentadienyl) zirconium dichloride (0.255 mmol of Zr). The reaction mixture was maintained under mechanic stirring at room temperature. After 2 hours of reaction the resulting solid was isolated by filtration and washed with consecutive fractions of toluene at 700° C. up to a total volume of 500 ml. The solid was finally dried under vacuum for 24 hours. The Zr and Al content in the catalyst was determined by ICP and it was 0.36% and 18.1% by weight respectively.

Workup

  1. customIn a flask of 250 ml of capacity it was weighed
  2. temperatureThe reaction mixture was maintained
  3. customAfter 2 hours of reaction the resulting solid
  4. customwas isolated by filtration
  5. washwashed with consecutive fractions of toluene at 700° C. up to a total volume of 500 ml
  6. customThe solid was finally dried under vacuum for 24 hours

Sources & evidence

ORD record
ord-e70342d996bd492396b331ebacd8690f
Source dataset
uspto-grants-2006_12
Patent number
US07148173B2

Reaction notes

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