Does anyone have any materials on the preparation of magnesium alkoxides using the alcoholysis or esterification methods?

Research on the Synthesis of Magnesium Alkoxide Compounds Abstract: Research on metal alkoxide chemistry began over 100 years ago. Nowadays, with its wide applications in inorganic synthesis, organic synthesis, directed catalytic polymerization, and the preparation of functional materials, particularly the extensive use of the alkoxide sol-gel method based on alkoxide chemistry for manufacturing non-metallic materials, this field has seen rapid development. Magnesium alkoxide compounds of the type MgOR2 (R=alkyl) are water-sensitive alkoxides that can be used as selective substrates in organic synthesis or as catalysts for polyolefins; moreover, since divalent magnesium ions can form stable chelates with carbonyl groups, magnesium alkoxide compounds such as magnesium methoxide can also serve as selective carbonyl condensing agents. By reviewing domestic and international literature and studying the synthesis methods of metal alkoxides, this paper explores three methods for synthesizing magnesium alcohol compounds. I. Direct synthesis method: In this paper, magnesium is reacted directly with anhydrous methanol to produce magnesium methoxide ； “\"Higher-grade\" alcohols (such as those with C≥2) cannot react directly with magnesium in the absence of a catalyst. In this paper, anhydrous ethanol was reacted directly with magnesium using CCl4 as a catalyst to produce magnesium ethoxide; however, without triethyl orthoformate as a catalyst, anhydrous ethanol does not react with magnesium ； Whether using CCl4 as a catalyst or triethyl orthoformate as a catalyst, propanol cannot react directly with magnesium. II. Alkylmagnesium method: Magnesium secondary and tertiary alcohols, which possess steric hindrance effects, can be prepared directly by reacting alkylmagnesium compounds R2Mg with alcohols. The main drawback of this approach is that alkylmagnesium compounds are relatively expensive. To address this issue, this paper uses format reagents to prepare alkylmagnesium compounds, which are then reacted with tert-butanol... to obtain magnesium tert-butoxide. Even when 1.5 molar equivalents of diglyme are added during the preparation of alkyl magnesium, the yield of alkyl magnesium is only 88%, which is an important area that requires further research in the future. III. Alcoholysis/esterification method: The main process of the alcoholysis method involves the reaction of higher alcohols with magnesium alkoxide solutions, followed by distillation; the alkoxy group in magnesium alkoxide is replaced by a new alkoxy group, resulting in the formation of a new magnesium alkoxide. This method is applicable to the magnesium alkoxide compounds of primary alcohols with higher boiling points, such as magnesium n-propanolate, magnesium n-butylate, magnesium isobutylate, etc. However, the magnesium tert-butylate prepared by the alcoholysis method has a purity of only 80%; this is because tert-butanol exhibits a strong steric effect that hinders further alcohol exchange. Additionally, the boiling point of tert-butanol is not very different from that of methanol, making it difficult for methanol to evaporate rapidly, and as a result only a mixed alkoxide product is obtained. Reacting a mixture of toluene and tert-butanol with a methanol solution of magnesium methoxide can increase the reaction conversion rate, yielding magnesium tert-butoxide with a purity of 88%, but it is still not possible to obtain a product of high purity. To address this issue, this paper uses tert-butyl acetate instead of tert-butanol for an esterification reaction with magnesium methoxide for the first time, resulting in magnesium tert-butoxide with a purity of 95.6%, which fully meets the advanced standards abroad. In summary, almost all magnesium alkoxide compounds can be prepared using these three methods: magnesium methoxide is prepared by direct synthesis ； Mg alkoxide is prepared by the alcoholysis method ； Magnesium secondary or tertiary alcohols are prepared by transesterification or the magnesium alkyl method. I can’t find the complete version outside right now; the original poster can try to find it themselves