ChemicalBook CAS DataBase List Diphenyldimethoxysilane

Diphenyldimethoxysilane synthesis

8synthesis methods

Product Name:Diphenyldimethoxysilane
CAS Number:6843-66-9
Molecular formula:C14H16O2Si
Molecular Weight:244.36

Diphenyldimethoxysilane can be used as a precursor in preparetion of silica and an electrolyte additive in lithium ion batteries . It is synthesized by nucleophilic reaction between phenyltrimethoxysilane and Grignard reagent phenyl magnesium chloride.

3115-68-2 Synthesis

3115-68-2
290 suppliers
$10.00/5g

80-10-4 Synthesis

80-10-4
204 suppliers
$10.00/5g

6843-66-9
349 suppliers
$8.00/25g

Yield:6843-66-9 78%

Reaction Conditions:

in sulfolane

Steps:

3 EXAMPLE 3
EXAMPLE 3 In the manner described above, a mixture of 3.24 g (0.036 g mole) of dimethyl carbonate, 3.96 g (0.015 g mole) of 96 percent diphenyldichlorosilane, and 0.5 g of tetra-n-butyl phosphonium bromide in 15 ml of sulfolane was heated at 150° C. for 16 hours. The reaction mixture was then added to 200 ml of icewater and the organic portion was extracted with two 25-ml portions of hexane. After the extract was dried over anhydrous MgSO₄, the solvent was distilled off and the residual material was distilled under reduced pressure to obtain 2.87 g (78 percent yield) of diphenyldimethoxysilane, b.p. 93° C.-94° C./0.1 mm Hg.

References:

The Dow Chemical Company US4375549, 1983, A

67-56-1 Synthesis