Ethanol, aluminum salt

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 198 g. of m-phenoxy-benzaldehyde in 1 liter of absolute ethanol 60 g. of aluminum ethoxide are added. The reaction mixture is allowed to stand at room temperature. The reaction mixture is then evaporated under atmospheric pressure. From the residue following the procedure of Example 1 198 g. (98.9%) of m-phenoxybenzyl alcohol are prepared in a purity over 95% (according to gas chromatography). to stand at room temperature The reaction mixture is then evaporated under atmospheric pressure

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Salen ligand (C0) (1.0 g, 3.9 mmol) and aluminium triethoxide (1.2 g, 7.4 mmol) were dissolved in dry toluene (25 mL). The reaction mixture was refluxed for 4 hours after which the toluene was evaporated and the resulting yellow residue taken up in dichloromethane and washed with water (3×100 mL) and saturated brine (100 mL). After evaporation of the organic phase, a light yellow powder was obtained which was washed with diethyl ether (ca. 50 mL) and dried to give salen complex (C1) (1.2 g, 49%). 1H NMR 3.87 (8H, s, 2×CH2CH2), 6.7-6.9 (8H, m, 8×HAr), 7.1-7.3 (8H, m, 8×HAr), 8.29 (4H, s, 4×CHN). 13C NMR 60.14, 65.09, 117.36, 119.00, 131.81, 132.74, 161.46, 166.85. m/z (ESI) Found: 603.1775 C32H25N4O5Al2 (MH+), Requires 603.1769. was evaporated washed with water (3×100 mL) and saturated brine (100 mL) After evaporation of the organic phase a light yellow powder was obtained which was washed with diethyl ether (ca. 50 mL) dried