Acetic Acid → HCID 23496502, compound

Participants

Reaction Steps

A suspension of 4,4′-bis-(methyldimethoxysilyl)biphenyl (2.4 g, 6.62 mmol) in 5 ml of ether was stirred vigorously with 3 ml of 0.5% acetic acid solution for 32 days. The white suspension was filtered and the solid was washed three times with acetone and ether. The resulting fine white solid was dried for one day under vacuum at room temperature and gave 4,4′bis-(methyldihydroxysilyl)biphenyl in 32% yield (0.65 g, 2.10 mmol). 1H NMR (DMSO-d6, δ, ppm) 7.66 (8H, s); 6.40 (4H, s); 0.19 (6H, s). 13C NMR (DMSO-d6, δ, ppm) 144.7, 139.3, 134.9, 126.6, 0.38. 29Si NMR (DMSO-d6, δ, ppm) −21.22. Anal. Calcd.; For C14H18O4Si2: C, 54.87; H, 5.92; Si, 18.33%. Found: C, 54.82; H, 5.79; Si, 18.80%.

Provenance & Evidence