Tetraethoxysilane → HCID 21503214, compound

Participants

Reaction Conditions

Reaction Steps

To a Grignard reagent solution prepared from 4-bromophenyl diphenylphosphine (36 g, 0.1 mol) and magnesium (2.43 g, 0.10 g atom) in 130 ml of dry tetrahydrofuran, tetraethyl orthosilicate (54 g, 0.21 mol) is added and the solution heated at 55° C for 4 hours. The solvent is removed in vacuum leaving 27 grams of clear liquid, analyzing 50 percent product by gas-liquid chromatography. A sample separated by this means gave a H'NMR, delta (C6D6): 8.84 (t, 9H); 3.74 (q, 6H); 6.90-7.90 (m, 14H), consistent with the structure expected. The yield is 32 percent.

Provenance & Evidence