Follow SiliCycle on Facebook Follow SiliCycle on Twitter Follow SiliCycle on LinkedIn Watch our videos on Youtube

entree SiliaCat

Hydrosilylation Using SiliaCat Pt0

Hydrosilylation reactions (or catalytic hydrosilation) are a widely used method to prepare organosilicon products. The reaction consists of the addition of Si-H bonds on unsaturated bonds like alkenes, alkynes or ketones, where catalysts are often required (usually H2PtCl6). SiliaCat Pt0 can be used for hydrosilylation reactions. Some examples are shown to the right

 

Hydrosilylation

Solvent Effect
Substrate
Time
(h)
Temp.
(oC)
Conversion
(%)
Selectivity
(%)
1-octene
5
22 / 60
88 / 99 98 / 99
1-decene
5
22 / 60
100 / 100 97 / 98
1-octadecene
5
22 / 60
95 / 98 56 / 83
4-vinyl-benzamine
5 / 24
60
47 / 80 96 / 96
3,3-diethoxyprop-1-ene
5
22 / 60
94 / 100
93 / 81

 

Hydrosilylation Typical Experimental Procedure

Conventional Experimental Conditions

Reaction - A 100 ml two neck dry round bottom flask equipped with a condenser and a rubber septum is filled with 1 mol % SiliaCat Pt0 and was degassed two times for 15 minutes kept under argon conditions. The anhydrous solvent, the silane (95% pure) and the olefin (previously degassed for 15 minutes under argon) were added using a syringe. The reaction mixture was either stirred at room temperature or heated at 60°C until the GC/MS analysis showed maximum conversion

Work-up - Once the reaction is complete the catalyst was filtered off and washed with toluene. The filtrate was concentrated to give a crude product. The conversion in the desired product was determined by GC/MS.

Note: Unless otherwise indicated, all manipulations were carried out under argon conditions. In general, reactions were performed on a 2 mmol scale in 15 ml anhydrous toluene.

5 Item(s)

Set Descending Direction
per page

List  Grid 

  1. SiliaCat DPP-Pd heterogeneous catalyst

    SiliaCat® Heterogeneous Catalysts DPP-Pd

    Typical Applications: Suzuki, Heck, Sonogashira, Kumada, Stille and Buchwald amination
  2. SiliaCat® Heterogeneous Catalysts TEMPO

    SiliaCat® Heterogeneous Catalysts TEMPO

    Typical Applications: Oxidation of alcohols or Aldehydes
  3. SiliaCat® Heterogeneous Catalysts Pd0

    SiliaCat® Heterogeneous Catalysts Pd0

    Typical Applications: Suzuki, Heck Sonogashira, Kumada, Stille, Selective debenzylation, Selective hydrogenation
  4. SiliaCat® Heterogeneous Catalysts Pt0

    SiliaCat® Heterogeneous Catalysts Pt0

    Typical Applications: Selective reduction of nitroarenes, Hydrosilylation
  5. SiliaCat® complete heterogeneous catalysts kit: SiliaCat DPP-Pd, SiliaCat Pd0, SiliaCat Pt0 and SiliaCat TEMPO

    SiliaCat® complete heterogeneous catalysts kit

    Containing SiliaCat DPP-Pd, SiliaCat Pd0, SiliaCat Pt0 and SiliaCat TEMPO

5 Item(s)

Set Descending Direction
per page

List  Grid