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ChemicalBook CAS DataBase List HEXYLDICHLOROSILANE

HEXYLDICHLOROSILANE synthesis

6synthesis methods
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Yield:928-65-4 10% ,871-64-7 89%

Reaction Conditions:

with tetrachlorosilane;tributyl-amine at 130; for 18 h;Schlenk technique;

Steps:

a.4 Entry A21, Table 6, Target reaction: HexSiH3 + SiCl4 → HexSiHCl2 + HSiCl3

HexSiH3 (79 g, 0.58 mol, 1.0 eq), n-Bu3N (4 mmol, 4 mol%) and SiCl4 (540 mL, 3.4 mol, 5.0 eq) were reacted in a Schlenk-flask at 90 °C for 52 h. GC-MS-analysis proved the stepwise conversion of HexSiH3 to HexSiH2Cl. For full conversion of HexSiH2Cl into HexSiHCl2, HSiCl3, admixed with SiCl4, was distilled off and additional SiCl4 (50 mL, 0.4 mol, 0.4 eq) was added to the reaction mixture and heated to 130 °C for 18 h. After separation of the low boiling compounds HSiCl3 and SiCl4 by distillation, HexSiHCl2 was isolated in 87 g (0.47 mol, 81 % yield).

References:

WO2021/243137,2021,A1 Location in patent:Page/Page column 63

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