What can aluminum isopropoxide react with?

In organic synthesis, aluminum isopropoxide can participate in numerous reactions:

In the Meerwein Pondorf Verley (MPV) reaction, using aluminum isopropanol isopropanol can reduce ketones and aldehydes to alcohols, while aluminum isopropanol isopropanol itself is oxidized to acetone. The reaction product is thermodynamic controlled.

In the Oppenauer reaction, the above reactants exchange with the products, and the secondary alcohol is oxidized to ketones, while the high allyl alcohol is oxidized to α,β- Unsaturated carbonyl compounds.

3. The depolymerization of isopropanol aluminum tetramer involved in the above reaction: Someone has studied the application of Al (O-i-Pr) 3 catalyzed ring opening polymerization of cyclic esters. Al2O3 ≥ 24.7% Melting point: Fully soluble in anhydrous toluene at 116 ℃~135 ℃, barreled in 3 packages * 10kg of isopropanol aluminum is a highly selective aldehyde ketone reducing agent that transfers negative hydrogen ions to aldehydes or ketones, and oxidizes itself into acetone. As the reaction progresses, evaporate the acetone to make the reaction X proceed in the direction of the product. By adding an excess of isopropanol in the reaction, the newly formed aluminum alcohol can be exchanged with isopropanol and regenerated into aluminum isopropanol for reduction. Therefore, as long as the catalytic amount of aluminum isopropoxide is used, the reaction can be completed. The advantage of this reaction is that the reduction of unsaturated carbonyl compounds is particularly smooth and does not affect C=C, - NO2, - COOR

Process: Aluminum isopropoxide forms coordination bonds with the carbonyl groups of reduced aldehydes or ketones to obtain (I). (I) An intramolecular hydrogen anion shift occurs, resulting in a new alcohol ketone complex (II) (II) Further cracking to acetone and (III). (III) Decomposed by inorganic acids to obtain alcohols (or exchanged with isopropanol). If isobutanol aluminum is used, it can be formed.

How to post treat aluminum isopropoxide?

If the solvent is insoluble in water, simply wash the solvent with water to neutral or near neutral. Aluminum salts are severely gelatinous in the middle of the pH range of 7-8.

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