Magnesium alcohol

Mixed aliphatic ethers containing methyl or ethyl radicals can be synthesized from the corresponding alkyl sulfate and magnesium alcoholates, e.g., methyl n-butyl, methyl cyclohexyl, and methyl isoamyl ethers (70-78%). A higher yield of ethyl isobutyl ether is obtained by substituting sodium for magnesium (70% vs. 30%). ... 

Protein-calorie malnutrition Total parenteral nutrition without magnesium Prolonged parenteral fluid administration without magnesium Alcoholism Reduced absorption... 

Grignard syntheses with zinc in place of magnesium Alcohols from oxo compounds and carboxylic acid derivatives... 

This patent describes the reaction product obtained from the treatment of magnesium alcoholates such as Mg(OEt)2 with tetravalent titanium compounds such as TiC OR) or TiCl. Ethylene homopolymerizations and ethylene/1-butene copolymerizations were investigated and the polyethylene produced possessed a narrow molecular weight distribution as indicated from M /M values of 2-4 measured on the polyethylene samples. The polyethylene was described as especially suitable for the production of injection-molded articles. Catalyst Preparation 11 g of MgjOEt) was suspended in 50 ml of Diesel oil (boiling range of 130-160°C) and 200 ml of a 1 molar... 

The hydrosilylation of ketones is referred to above when a chiral phosphine-platinum (ii) complex is used as catalyst, chiral alcohols are obtained, as their silyl ethers, in optical yields of 5-18%. Chiral alcohols are also obtained in 15-20 % optical yield by condensation of ketones with magnesium alcoholates derived from N-methylephedrine. A study of the chiral reducing system, a-phenylethylamine-borane, has been referred to previously, as has Corey s refinement of prostaglandin reduction. 

Ethanolate and propanolate of magnesium which are dissolved in the appropriate alcohol and a nonpolar halogenated hydrocarbon can also be used as deacidification agents. By transformation of the magnesium alcoholate in the appropriate carbonates (aUcoxy magnesium carbonate) using (dry) carbon dioxide, a further improvement of the solubiHty and permanence could be reached. 

Thoms, H., Epple, M., Viebrock, H., and Reller, A. (1995) Magnesium alcoholates as precursors for magnesia. /. Mater. 

Magnesium Alcohol, methyl 1 % oleic or stearic acid neutralized with ammonia... 

Preparation.—A simple route to alcohols is the chain extension of chloro-alcohols by reaction of their Grignard derivatives with alkyl halides. The requirement for protection (and subsequent deprotection) of the hydroxy-group during this sequence has been shown to be unnecessary if the chloro-magnesium alcoholate is formed initially (Scheme 1). 

Myers has documented a related C=N addition, in which the diastereose-lection depends on the presence of a remote hydroxyl substituent [57, 58]. The addition of phenyl acetylide to TBS ether 35 afforded products with little diastereoselectivity (1 1.5 dr, Equation 5). However, when the addition was conducted with the substrate 36 incorporating a free hydroxy group, high diastereoselectivity was noted (11 1 dr). It was hypothesized that this latter result arose through the intervention of the Mg chelate 41. Formation of this chelated magnesium alcoholate 41 enforces a conformation that preferentially exposes one of the quinolinium diastereofaces. 

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