Tetraethoxysilane → HCID 131730584, compound

Participants

Reaction Conditions

Reaction Steps

A solution of 3,4-dihydroxybenzaldehyde (27.6 g, 200 mmol) and toluene (220 mL) was dehydrated by distilling 5 mL of the solution. Thereafter, 20.8 g (100 mmol) of tetraethoxysilane (TEOS) was added to the solution while stirring. The mixed solution was refluxed for 1 hour, and then, while the distillation temperature was 100° C. or higher, distilled until the amount of the solution became half. After the distillation, solid content of the product was isolated by suction filtering using a membrane suction filter. The residual solid content was heated to 100° C. under vacuum using a vacuum dryer so that remaining volatile components were completely removed. The solid content (3,4-dihydroxybenzaldehyde-silicon complex) was black in color. The yield amount was 30.0 g (100 mmol), and the yield percentage was 100%. 15 g of 3,4-dihydroxybenzaldehyde-silicon complex was dissolved into 100 mL of 1:9 dimethylsulfoxide/ethanol to produce a coating liquid.

Provenance & Evidence